I'd love to do LASIK. My brother and his wife both did it. Mind you, they both work for the Feds, and each one of their insurance plans covered 50% of the cost, so each one got it for free.
I'm pretty sure my wife's insurance would cover 50% of the cost (federal plan), however I'm fairly confident that mine doesn't (even though I get $300 every 2 years). I'm pretty sure that if my insurance ponied up for LASIK, it would be cheaper for them in the long run, as I wouldn't be spending $300 every 2 years.