They don't buy used clubs. They accpet it when you buy a new set or pre-owned. But they will give you 30% more on the value of your old set.

I don't think goldsmith does, but golfsmith takes in onld clubs as trade-ins on new clubs

As some have already stated they accept used clubs as a "trade-in" but will not buy them if you are not purchasing something from the store. If you are looking to just sell used clubs then you will be better off selling on ebay. ebay will probably give you the best sales price in either situation.

They take trade-ins if you were buying something new from them, but I don't think they will just pay you cash for a used set.