Hello Chris,
thanks for a message that might be useful and help explain things better.
1. What do you mean by "update your old Apple ID"? Of course at the time (about 2 years ago) I went to the relevant pages, but the only things you could change were details like your billing address and contact preferences -- NOT the email address or the ID itself.
However, right now at http://support.apple.com/kb/HE40 I find the following image that seems to contradict me:
which seems to imply I can change both my ID and password. I'm almost sure this was NOT the case about 2 years ago when I had the problem, but things might have changed since then.
(BTW, right now going on appleid.apple.com -- both https or plain http -- as found on many Apple's support pages, always gives: The requested application was not found on this server.") -- very nice.
HOWEVER, right now on my iTunes on my PC, under Account Information, it shows "Apple ID: <my email address>" and below Payment Information and Billing Address, all 3 fields with a "Edit" button.
The "Edit" button next to the "Apple ID = <email address>" takes me to the "Edit Apple ID Details", with exactly and ONLY TWO fields: email and password.
I'm more and more confused: the two "pages" (appleid.apple.com, if it was working, or as in the picture -- and iTunes' "Account Information" page) could not be more different. And FOR ALL PRACTICAL INTENTS AND PURPOSES, for my iTunes my Apple ID and my Email address are the one and identical thing.
But the above just confirms what I (and others) said often: the Apple ID is a badly designed mess: all our problems are due to a technical decision that was made years ago, and turned out to be incorrect.
This "Apple ID" should certainly be obvious and straightforward, and surely consistent between the various interfaces.
BUT BUT BUT -- I argue your comment is anyway beside the point: I don't need to change my "Apple ID" (even provided I can change it in all possible ways I could dream of): what I need, and I think Apple ought to allow me, is to change the **** Apple ID "tied" in the apps and songs I bought with my "old" Apple ID, and change it to my "new" Apple ID. They all (apps, songs and 2 IDs) legitimately belong to me.
OR anyway to change WHATEVER authentication info (which anyway is 1:1 with a Apple ID) is embedded in the apps' andf songs' files and stops me from updating what I bought under ID1 while logged in under ID2.
btw, 2 years ago I changed my Apple ID not because I didn't have anything better to do, but just because I forgot my EMAIL (not STORE) password, since I hadn't needed to use it in ages, and since the 2 passwords, despite being linked to the same email address (used also as Apple ID) NEED NOT be the same.
My situation would be the same if that was the email address of, say, a old girlfriend or a old job -- or the address of a husband/wife who now want to keep all their apps and songs together under one ID to share ipads and iphones without constantly having to switch IDs (using the same home computer and user -- why not?!?!).
Please keep in mind that when I had that problem 2 years ago (and even RIGHT NOW for my brand-new, freshly installed iTunes on a brand-new PC with a brand-new iPhone!!!), APPLE ID and EMAIL ADDRESS were/are one and the same thing -- albeit with different passwords.
https://discussions.apple.com/thread/4117725?answerId=18962866022#18962866022&ac_cid=op123456#18962866 explains this in more detail.
2. you wrote: "
Hmmm? You are logged into iTunes and you make a purchase so that is extremely odd that the purchases would go against your iTunes account.
/s
"
I do not understand what you mean here, or if you're being sarcastic. In this case, my comment that prompted your then-inappropriate answer still makes sense: NOWHERE does iTunes, the Store or Apple tell you that your purchases will be TIED FOREVER to the Apple ID (which seems just a disposable email address) which you happen to be logged in as at that particular time (old job, old gf/bf, test), and NOT to your payment details, or MAC address, or PC serial number, or credit card, or firstname.lastname-dob-city, or whatever else any reasonable person could assume. At the very least, Apple ought to tell you in advance.
3. "for whatever reason, this cannot be done" -- because they don't care for their users' rights and convenience, because it's a technical glitch, not because it's an "impossible" thing to be asking.
4. your explanation about authorized pc and listen to music makes little sense, I think: authorization info is embedded in the physical songs' and books' and apps' files: so that for exampole you can listen to them, or use them, on any iPhone or iPad (more than one) you might have -- but not give them to your friends who have their separate Store account(s).
5. Exactly: I did purchases under different accounts, and now I want them under one account only: i own them all, so why on earth should this be prohibited? it's just the chaning of some embedded auth information -- that as explained elsewhere can be done in a perfectly safe and traceable way: iTunes (whether on my PC or in the Cloud) has access to all my IDs (and auth info) and purchases at the same time: it CAN change this **** info and allow me to use MY PURCHASED stuff on all my devices without FORCING me to switch IDs all the time.
BTW, You seem to imply a difference between the two concepts of "iTunes account" and "Apple ID": how are they different? I have 2 Apple IDs, and as far as I know this means I have 2 corresponding iTunes accounts: there's a 1:1 relationship between the two concepts, correct?