Hi Stubby --
I noticed that you're located in Reno, NV. So, you're probably most interested in the U.S.A. used market.
I've been browsing for other used gear (e.g., Yamaha Reface DX) on eBay, Reverb, Sweetwater Gear Exchange, etc. I'm kind of shocked by the asking prices. Some of the asking prices are higher than the advertised retail price! These prices are set by individual people who are 1. smoking the wacky tobacky or 2. willing to wait a loooooong time.
A reasonable price should draw a buyer. It's like real estate. The higher the price, the longer time on the market. (Unless you live somewhere with an insane housing market.
)
So, it might be better to look at operations that turn over a lot of user gear -- like the infamous Guitar Center. GC has several user Genos1 ranging from $3,000 to $4,200 USD. Undercut GC and your used Genos1 might move fast. How much money do you want to squeeze out of your Genos1? GC lo-balls trade-ins in order to make money back on the sale.
The other issue is regional market size. I like Reno, but it's not a big metro area. Are you willing to ship?
Lots of factors to consider -- pj