If FB buys Myspace they would control 80percent plus any features that Myspace has that FB doesn't they could integrate it to FB.
I don't think there are any revolutionary features in MySpace that cannot be duplicated by Facebook's team of software developers. If you examine MySpace, Friendster, Facebook, and LinkedIn, they are all the same. Practically identical platform.
Sure, people can customize the look-and-feel of their profile pages in Friendster and MySpace, while Facebook is just boring Blue. But i don't think it's worth 35 million to buy MySpace just to copy the source code to do the same in Facebook. You can assign about 10 programmers on your payroll to work on it for a year, and their combined salaries won't add up to 35 million. So it's cheaper.
If Facebook will just let MySpace die, the orphaned users will be forced to spend more time on their FB profiles anyway... Or just chill (if they hate FB)... After all, it's safe to assume that about half of MySpace users have Facebook accounts as well anyway. So why spend 35 million to buy those people out?
In fact, one thing i believe, is that Facebook CAN kill Tweeter if it wants to. Tweeter is just a "messaging" service of some sort. Why can't you put a Tweeter-like app inside Facebook too, right? Even Google and Microsoft are afraid Facebook might start opening its own FREE EMAIL service to compete with GMAIL and HOTMAIL. So you could one day end up with your very own "@facebook.com" email address.
One thing Facebook has as its weapon:
It is difficult for people to leave behind their friends. Their business model is guaranteed by "forced" loyal clients.