This question really applies to anything: furniture, cars, etc. People always want way too much for their used item and hence don't like the trade in valuation and hence have trouble selling privately due to an over inflated opinion of what others will pay for it. It's a tricky thing pricing a used product. Think of it like this: CT brand new$10000; after say 5 years want to sell. At $10000 you will get zero calls. At $50 you will flatten your mobile phone taking calls. Somewhere in their is the magical figure where a few will be interested and 1 will buy.
You always see people asking "what is my CT worth to sell?" on here, and the reality is that there is no correct answer. Timing can be a factor: people get nervous around elections for eg. And Xmas is also a bad time to try to sell something. On the other hand, August/September can be quite good as a lot of people have just received tax refunds.
I reckon if you could get a trade in that would be the way to go. So much less grief with people arranging to look at, haggling on price, paying. Trade in means its gone, no need to fix things and don't have to store it whilst waiting for a buyer.
And Jenko, that's my 5c: inflation seems to have got hold of even cliched statements such as this!!