Greetings!

A 10GB RioCar started out at $1,000 when they first came out (empeg Mark 2), went down in the first price cut to around $699, then down to $199 during the fire / liquidation sale. On eBay, they (20GB) are now running about $600.

I would not worry about the capacity as such - since it is a standard drive, they are very easy to upgrade.