I do see the point that you are making. However, I need to keep up-to-date with the latest software. Having said this, I am not that pleased at all with Office 2011 for Mac. I have been contemplating using bootcamp to install Windows Ultimate onto a partition of my Mac so that I can use the actual Office 2013.
All of the collaboration is there in Office 2011 for Mac, its just not as well thought out or as simple and effortless to implement - thus it wastes time and resources.
This in part is down to the way Apple structures their operating system but the fault really does have to go to Microsoft for not thinking the thing through properly.
In regards to using older versions of Microsoft Office, some huge multinational businesses are still using Office 2003 because replacing all the licenses would cost them fortune. I would wager though that not having the latest software would be costing them more in time and resources than to simply upgrade.
For the home user, cost would probably be more important then providing resources but I genuinely do believe that not keeping up-to-date with the latest technology is a bad thing, whether you are a home user or a business. If for example we needed to communicate for whatever reason and I sent you a file in .docx format, Microsoft Word 2008, wouldn't be able to open it.
You would then have to e-mail me asking for the document in a different format. I would then have to recreate the document in a format that you were able to open and send it back to you. This would all have to be done by e-mail because Office 2008 cant integrate with SkyDrive and although it does have some collaboration tools, the tools it possesses (in my opinion) are now antiquated because the technology has moved on so much.
If you want to create a document and print it out, Office 2008 will do just fine but if you want to collaborate with others, Office 2008 takes longer, wastes time, resources and increases cost.
By the way, although I can only install Office on 5 machines using my subscription, that subscription covers 20 users as there is 4 users on each computer. Each user has their own "outlook.com" address and each user can choose to upgrade their own SkyDrive to a larger amount of storage if they wish to. If I had to pay £79.99 for each computer, that would be £399.95 and if I had to pay £79.99 for every user, that would be £1599.80. I also have Office installed on my iPhone and my families phones taking up the 5 mobile installs (which would be an extra cost without the subscription)
When you start to count the cost of what I pay £7.95 per month, compared to the cost of what I would have to pay, if I purchased everything I currently have, as boxed software, there really is no comparison between boxed software and subscription and that does not take into account any of the other benefits that I mentioned in my last post.