I like wedge heels a lot because they fit so nicely in the sweet spot of giving me extra height without feeling as fussy or uncomfortable as other types of heels can. But I overdosed on cork wedge sandals for a few years, then kind of stopped wearing them. I've gotten rid of all of them except for one pair, which I actually don't think I've worn at all this year.
In particular, I used to wear them to work a lot in the summer because I have a fairly casual office and they hit the balance between overly dressy and overly casual pretty well. I have one pair of wedge heels I've been wearing a lot for the past two years that sort of fills that niche, but feels a little more current (the Bialas below). I've also been wearing a lot more closed-toe flats, especially pointy ones like the others I've collected.
I'm also wearing flat sandals for things like going out to casual-ish dinners. Which I was always wearing anyway, but I used to look at going out to dinner as a good excuse to break out the wedges to dress things up a tiny bit. I actually held onto my last pair of wedges because I thought I might want them for that, but apparently I don't like them enough to find excuses to wear them anymore.