I've got a Sigma 85mm 1.4 ED HSM that quit autofocusing. Maybe the autofocus motor died? Can you give me a guesstimate of how much it would cost to repair this lens? Trying to see if it's worth it. As these lenses are only going for $400-$450.

We use them for all of our Church cameras and lenses, I have used them for my own repairs as well as other close friends who are photographers. The people at Kurts are amazing! Friendly, knowledgeable and get the repairs done fast and accurately. Their prices are fair, if you are in the biz of photography understand you will have to do maintenance on your equipment, these guys are great in keeping your stuff running well, especially if you treat your equipment well.

Dude, why are you asking here? You need to call them and ask them. They are THE place to bring camera repairs, they are a Nikon certified warranty repair capable facility, not many of those around. Just bring it to them, if it can be saved, they can save it.