You can get a last gen console (XB360, PS3) for what, $100 or less used/refurbished or $200 or less new? If someone never had that console, it's comparable with a lower end PC playing "last gen" PC games. And a good deal of console exclusives that never get ported to PC.
Buying a new console < 1 year after release is the equivalent of buying a new $1K+ gaming PC with a top-of-the-line video card.