Used car prices are wildly diverse, best as I can tell.
I'm selling my 2012 TSX wagon with 91k miles. Yesterday I took it to local dealers who I'd been referred to by submitting a KBB inquiry. One offered $7,500, another $9,000 and I decided to trade it in for $11,000 (which also knocks down the purchase price of our new car, so I'll add another 6.25% to that $11k.) So that's a swing of a little more than $4k with a sample size of three!
But this variation is nothing compared to what Edmunds is showing as a purchase price for a 2012 TSX wagon:
$13k to $25k! Holy hell, I paid under $31k for mine ten and a half years ago.
So maybe I could get a couple thousand more by really hustling and doing a private sale. But I'd rather drive it to the dealer and drive home in my new car.
Good luck!