I've adjusted mine twice in the last month alone because I needed to fold down the rear seats. But also sometimes you borrow your car to someone who doesn't have a memory setting. Or your car doesn't have memory seats and has multiple users.
If I have to use a touchscreen to adjust my seat once a month, that's 11 times a year too much for me. Buttons? Fine. Levers and wheels like in old cars? Also fine.