I need some reasonable advice please

Hey guys I'm in a bind here between buying a Dreamcast or a 360 and here's why: I only want to play 2 games: Jet Grind Radio and Rez. Here are my options: Buy Rez for PS2 and buy a dreamcast for JGR, or buy a 360 so I can download Rez and play a glitchy remake of JGR. Rez for Ps2 is pretty expensive but buying the 360 is costly as well. I need your opinions plz.

if you're just for the two games.. PS2 is cheaper?

but. if you want awesomeness and options, go 360.