Any trade in offers for iPad Mini 4?

Is there any location in the US or online that would give me decent deals around a used iPad mini 4? It is basically brand new and have always been used with a case. I am open to some gaming consoles and also a newer iPad. I tried AT&T< Gamestop, Best Buy and Apple. None of them are doing any trade-in's for Mini 4. But every one of them are doing trade in's for Mini 5 and newer. Am I just too late here to get a decent deal on a trade in for that particular model?