Xbox one is actually really based to collect for right now
You can get a used console from a private seller for anywhere in between $50-$150 depending on the model and condition and the disks are super fucking cheap
Most are floating around the $5-$10 mark (cheaper than PS4 games)
I bought a one X for $100 yesterday and I've already paid for it if you compare the price of the games to their digital or even steam counterparts
Add to that you can play a large portion of your 360 library an many popular og Xbox games and it's honestly a fantastic deal