Well, being from Colorado, you're asking a bit much.

NADA shows from 14.5K to 17.6K for the boat. Also, you're at the end
of the season. I'd hold it over the winter and try again ( listing it
maybe with the Bayliner dealer at the CONVENTION CENTER boat show in
Feb ) in the spring. You'll get more interest.

2150 Cierras, 5 years old are going for 12-15K.

Good luck, if you need help let me know.