I've been buying lots of parts via eBay since 2009 - I'm relatively new at this. I buy mostly Gretsch parts and drums. Sure, I have gotten a few good deals....mostly form folks on this Forum and other Forums. But I have to say - even in this economy - prices are going up for what I have experienced.
My take on these drums as far as worth goes - and I'm not suggesting parting them out.
The lugs are probably worth well over $100.
The bass drum and tom badges are $150 plus for the pair
The rest of the hardware is at least $150 +
That leaves the shells. Three ply shells are getting scarce and I would put a value of at least $300 for the shells alone.
These are just educated estimates and I get this from my own experience in looking around and buying Gretsch drums and parts.
Yes, it may be tough to sell the complete kit for $700 or so but the value is there. It's not a bad deal at $500
So I think these are a very good investment and they will only go up in value. Nice drums too.