I just sold mine on CL this week, took 2 days. Maybe I was too low on the price, but I felt it sold for about what I would have been willing to pay for it. Hanging on to something to squeeze the last couple hundred out wasn't worth it to me.
I think it sold because I had lots of pics (24), it was clean and ready to go camping. I was in the low end (4-5K) of RV prices, so admittedly it's a lot easier to find a cash buyer there.
The dealer ad bombardment doesn't bother me, when I search I always select "by owner" in the filters. I flag dealer ads every time I see one in the by owner section.