Point buy is good because it balances power, but often it merely prevents you from taking feats.
Only a few feat choices are a power increase, while the rest are there to make the game more enjoyable. Choosing between +2 str/dex or mobile will lead to you having to sacrifice power for the fun of mobile and hit n run tactics.
So while I appreciate point buy, I think I'd rather play a character starting with a 20 so I can have more fun with feats.
