There's a big difference between "selling" and "listing for sale"...
I see roadstars listed for 8-10k all the time, but they're certainly not selling.
Paid 10,000 last year for a 08 with 28,000 km justsaw a 03 for 9250,oo
So yes they are selling at least in this part of the world.
What model? I paid $7500 for my Roadstar last year with 120 miles on it, so I assume you mean like a Silverado? In the spirit of this thread, I bought mine at a Harley dealership after seeing it on the floor. I had gone down to buy a Heritage Softail.
Cycle trader makes it easy to find good deals though. I can find brand new 09 Roadstar's with no miles on them in the $8k range.