I reckon it’s the cleaning.

I’ve never used contacts because the idea of touching my eye squicks me out (even if it’s something meant to go there, just – no.), but having your eyelids do all the cleaning and never having to worry about them getting dirty or scratched while using them is probably something a lot of people appreciate. (obviously you do still have to be careful with them when they’re not in your eye, but they’re much less likely than glasses to get dirty or scratched)

Me, I’m happy just using a microfiber cloth and being careful.