It's simply overwhelming when you think of it. I try and keep active subscriptions to WOW and others just for updates and a change of pace throughout the year. But with 5+ MMOs I want to play - I would expect in the future keeping up with 2-3 will seem impossible. I see myself dropping some of the others and then focusing on a new one from time to time - then maybe coming back. In the short term I'm going to try and enjoy both the WOW and LOTRO expansion. They'll both be top notch in quality and also have the biggest bang for the buck.