I don't know what all paid users get that regular users don't, but one of the features is being able to search through other user's profiles and such. I bet I can find some interesting people in eight weeks, and once I get their names, then they'll be on my Friends list even after the paid account expires. If I find anyone interesting, then I suppose it's worth the five bucks. That, plus I have a few more access codes, in case anyone needs 'em.
If nothing else, after my two month trial is over, I still get to have ten pics instead of the normal three, as long as I pick the ten ones I want ahead of time and not constantly switch them around. Check out my new pics if ya wanna! ^_^