I bet most of them wouldn't. For one, what is Facebook going to do about the ones who already have 200 friends but don't pay? Force them to un-friend 100?

For another, what percentage of people actually have that many? It seems high to me because I'm one of them, but probably there are, in their user numbers, masses of people who have a handful or none at all.

I know I personally would just find the best free social net. I only use Facebook for playing a couple games anyway.