You can download and stream games like in the Wii. From The-Magicbox.com: - Ken Kutaragi also mentioned PlayStation 3 will be able to download and playback classic 16-bit Mega Drive (Genesis) and PC-Engine (Turbografx) titles, it is also possible to play a small fee to play certain time-limited game demos.
Your cube ended up like that because you had a ps2. the ps3 is too expensive, and your not too interested in the 360. Thusly, the wii is probably the only thing that will entertain you. This is all my own educated assumption, though.
(to the tune of "I just can't wait to be king" from The Lion King) I just can't wait to play wiiiiiiiii!!!! but seriously, i'm still getting a magic marker and i'm going to cross out wii and put revolution, 'cause obviously that kicks so much more ass