AS a Gm I did not use point buy for my first Pathfinder campaign, but I plan to for the next event I run. The point buy gives an even playing field, and low stats can make for great RP opportunities.
As a player I would also prefer this. I tend not to roll well when making characters. There's no two ways about it - it sucks to be level 1 with a +4-6 modifier when the rest of the group is sitting at +10 or better, and few things take a player out of a game faster than feeling like they are completely useless to the group.
Point Buy FTW!