Boklavah...
I truly feel your pain. I have thousands of CD, LP and DVD covers that I edited and corrected JUST for itunes. Now, all that work was for nothing.
What I've discovered in the first 10 minutes of upgrading to v11...
1. No album artwork in song list (HUGE... MASSIVE FAILURE)
2. No feature separating albums in the song list.
3. The vertical scroll-bar will disappear in the iTunes Store if I have the side-bar open. I have to close the side-bar and re-open it to get the scroll-bar back.
4. The search engine in the store is terrible. Do a search and get thousands of returns. Sort by any given category, browse and make a selection. Go back after viewing your selection and you have to start over. It doesn't save your search category or last position.
5. After searching for an artist or song in the store, you used to be able to sort "all songs" ascending or descending by column (song name, album, popularity, etc.). Not anymore. Now you have to plod through the list song-by-song with no filter or sorting options AT ALL.
This is why I rarely allow itunes to update. Besides the fact that it needs updating virtually every time I run it and it always takes way too long, they always find a way to screw it up. You really have to wonder what all those "geniuses" at apple are thinking when they release this stuff. They put so much effort into making it pretty that they have to remove practical features to make room for the new graphic features. Then, as they add all those barriers to protect it, they forget that it actually has to work, which it usually doesn't.
As the old saying goes... "Beauty is only skin-deep. It's what's inside that counts"... and that's why I have an Android phone.