On a budget a console is probably better value, right now anyway. Unless you're unlucky and something goes horribly wrong with hardware, you can resell everything.
PC is good, but you need to spend a lot and be pretty lucky finding the right parts cheap atm.
Reselling games isn't a huge deal, at least over here (I would be surprised if the US is any different).
You don't even need to go the ebay/CL or whatever route.
The likes of EB Games never give good trade value, but JB Hi-Fi generally does.
I've bought PS4 games in the past (on sale, new, random sources) and then traded within a year. Sometimes I've lost a few dollars, but generally not lost anything with those trades and even made money on some occasions
