Why did you buy your Xbox 360?

[twesterm]

For me, it was the library (not necessarily the exclusives). When I buy a console, I have my little formula:

if (# of games I want) * (average price of games) >= (price of console)

If that's true, I buy the console. After the 360 had been out for about a year, it finally had enough games to make it worthwhile and I've loved it ever since!