refresh my memory, does this point buy get added to base stats, or are the stats starting at 0 and you're adding the points.
Why do I ask?
standard 4d6, drop worst one, repeat 6 times, arrange to taste has an average result of about 12.75. Which times 6 is about 76 points (added to base stats of 0).
So I'd be less inclined to play a point buy PC that yielded stats WORSE than the average I could get with dice. Bear in mind, if I rolled it, and it sucked, I'd still play it, but that's because I had an equal chance to get awesome stats as well. But I if I point buy, I better be able to meet the dice average.