I have for sale a 12 GB (not 10) Rio Car, brand new in the box. This is the latest version with more memory (the mk 2A, not Mk 2). Compared to the 10GB units now available, this unit gives you 2GB more storage for just $10 more.
$310 plus $18 shipping if within the U.S. Will ship internationally at actual postage cost.

I can take Paypal, MC, Visa, or postal money order if within U.S.; Billpoint or international money order if outside U.S. I have two units available. I bought three, originally intending to put one in each car, but instead ended up getting additional docking sleds and using the same unit in all three cars.
tech@busdepot.com

Both units are now spoken for. If for any reason the sales dont go through I'll post a follow up, but it would seem they're sold.

You wouldn't have happened to run into anyone else in your search for a sale that would be interested in a 10GB unit, would you? I've got one to offload, and I'm charging the same price, but no one appears to be biting!

Thats likely due to (some) people knowing they can still get a 30 gig unit for $89 more. People can order the 12 gigs from Carplayer.com for the same price, and from a company instead of an individual.

Your best bet is putting it on ebay and finding someone either internationally or that doesn't know where to get these still.

Or, and here's a new idea, sell it for less. Then you could 'offload' it.