Well... Yes, you could buy a cube.
Then buy the memory card, games, controllers, and other eventual add-ons. Bingo!!
My point. The cube(and box) will eventually get add-ons and the like just as the PS2 is, and then everyone will cry over them also.
Consoles have passed the era of just being "a box". they have evolved, like it or not, into something more...DVD, browsers, etc. The days of buying a console and then just getting games is OVAR!!!!! Now and for ever more the add-on is here to stay....