The perfect setup for Apple IDs
I do understand everybodys frustrations and I am sympathetic to the situation people are in. Obviously, once you have made multiple purchases on multiple Apple IDs then it is to late, but if you understand the Apple ID system then it works out quite well. It is a little complicated and not the typical simple Apple way but what DRM is easy?
The way I have my Apple IDs setup is that when the iTunes store first opened I did not have a mobileme account so I used my old yahoo email as my Apple ID for song purchases. As Apple diversified, I continued to use my Yahoo email address Apple ID for song, movie, book and app purchases. My wife and I shared this Apple ID for all our iTunes purchases and Apple store purchases.
The iPhone 3G was released and both my wife and I purchased the phone and decided that moblieme syncing was worth the value to us. We purchased the family mobileme plan and used our new me.com addresses to sync our private data. My wifes me.com email, contacts, bookmarks and calendars syncd from her Macbooks user account and my me.com email, contacts, bookmarks and calendars syncd from my Mac mini. We kept my old yahoo email for purchases, which worked perfectly. This way our private data did not mix, but we could share our purchases. Then when icloud came out we moved our moblieme accounts to icloud and continued to have my old yahoo account for purchases. (I dont know if people know that you can have two Apple IDs use on the same iPhone at once, one for purchases and one for iCloud.)
This solution allows individuals to have their own personal data (I dont want to see my wifes contacts, calendars and imessages) but still be able to share purchases with the family. I think where apple messed up is that everything is called an Apple ID. Apple should have created an icloud ID for personal data and then an Apple ID only good for purchases. You then use the iCloud ID for personal data syncing and the Apple ID for iTunes, Mac App store, iBooks, etc.
If properly thought out in advance, Apples current method works but could be much more elegant. I do believe that apple needs to find away in this new digital age to be able to combine and separate purchases. What happens when a couple gets a divorce or kids move out? In the old days they could just split the movies or CDs, now they have to repurchase them. Also when you get married or start a relationship with a person you should be able to combine the purchases. The hard part is that it isnt just Apple that hasnt figured this out, its all digital purchases with DRM. Im no expert, but Im will to bet that part of the hold up with combining Apple ID purchases has to do with content owners. Whats to say that you dont purchase a movie on iTunes and then combine yours and a friends Apple ID so they can watch the movie and then after they are done watching the movie you then separate the purchase back on to your Apple ID.