It's one of those things that really appeals to me but that I can't really particularly justify the additional step of beyond "I like rolling dice". I've never convinced a group to take much interest, though maybe if I really emphasized that they would be statistically a half point better at most their rolls they would feel differently. I'm also not really that keen as DM because it would throw a level of on-the-fly complexity on reading monster statblocks and I am already devoting that mental energy to adjusting them for more important balance concerns or to have different enemies in a group use different equipment, or whatever.