I'm coming in late, but I'll chip in that I prefer point-buy over random rolls as well. I played with random rolls a lot, and most of the time, people ended up with similar stats to point buy arrays. Occasionally though, someone would have just a stupidly powerful array (18, 17, 16, 16, 15, 12, pre-race bonuses), while someone else ends up with +2 net across 6 stats. Yes, those cases are outliers, and yes, the other four players fell in the same ranges that point buy provided.
Since I really don't like the outliers (in either direction), I just use point buy. The above power-array was a hassle--challenging that character meant potentially killing the weak array player. Yes, that was 3E, where stats really, really mattered. In 1E/2E, stats had very little impact in your overall character, and in 5E, a 20 stat cap means that you can't get that far ahead of someone with lower rolls.
But again, most of the random arrays end up about the same as point buy arrays, and if I just use point buy arrays, I don't have those outliers anymore.