I'll bid $1200 worth of BFL chip credits for 2 of them. 48 credits, $25 discount per chip each. (3x16)
or for odd and interesting trades, I've got a rare '60s tinplate toy collectible for all 3, or arcade boards for one, a galaga bootleg set and a Ms Pacman, I think, unable to test those and a ROM may be missing off the galaga, so not recommended unless you're "into" that. (Fully working and guaranteed they'd be sold at a couple of hundred or so each from specialist online store) If you're into gold, I could probably get together 2 grams of recoverable scrap in old CPUs, (As determined by online sources) for one card.
Well I'll stop there or it will get increasingly bizarre