I bought a set of freshly powdercoated ones with brand new oem centre caps for £200 a few months back, no tyres.
I then sold my alright condition ones the next day for £100.
Unfortunately tyres on wheels and second hand tyres in general have little value, which is stupid but its the way it is and there also appears to be a very niche market for 17" Monzas, even though i think they are the "right" wheel to have on the Golf.