Here’s an incredible rarity for sale in a New York studio. The pictured Korg PS-3300 looks fantastic and the starting bid seems not totally out of reach. Unfortunately, there’s no way to contact the seller in this auction (“… this seller is not able to respond to your question”).
Anyway, here’s the link:
http://www.ebay.com/itm/330793044194?_trksid=p5197.c0.m619
That Korg PS-3300 is also shown in the following Youtube video: