Actually the coolest aspect of modded consoles is having emulators on them. A friend of mine has a modded Xbox with every single NES, SNES, Genesis game on it and tons of MAME games as well. Theoretically you could also do Gameboy, GBC and GBA as well. Though I guess all the extra power in the Xbox360 and PS3 won`t really help in this regard. Still, when you can get thousands and thousands of games at your disposal (including translated roms of games that were never released in the US) paying $50 for each new one starts to look less and less attractive.