So now it's a question of how much you ride? When someone replied earlier in this thread that they had 10k miles, and not much wear, you said yours were wearing because you commute, and had to stop at lights. Now I point out that I do the same thing, and I'm not having a problem, and you are now saying the wear is because of the amount of miles you put in. Ok.
And FWIW, I haven't been riding nearly as much since a back injury that I've been dealing with since mid-summer, but I work 5-6 days a week, about 24 miles round trip, so that's 120-140 miles a week, approximately, and I normally do several recreational/training rides a week outside of that, so yeah, I do put in similar mileage.
Look, I'm not trying to bust your balls here; if they aren't working for you, you certainly should switch. What is causing the wear on your cleats, though, seems to be a mystery. You sure you aren't doing a lot of walking around in them?
well yeah - how many and what kind of miles you put on the cleats has direct bearing, I mean a guy who rides 20 hours a week is going to be harder on cleats than a guy who rides 10, especially in commuter miles.