The dinc 2 has gone for around $40-$50 on Swappa. On eBay? I've seen things sell for more than retail price. And I've seen things go for a lot less than they're worth. Unless you can set a minimum (say around $40), you could lose your shirt or you could make a lot of money.
If you have a case, a screen protector, a spare battery, things like that, it goes for more on eBay. (Even a $9 Walmart case is a case.)