I’d argue that this is due to the monopolies surrounding most major professional sports, but it may also have something to do with the temptation to release a new game every single year. After being burned too many times, I did finally cut my upgrade cycle from every year to once every 2 or 3 years. However, even with less frequent purchases, I still notice that there are pieces of each game that seem to be endlessly recycled year after year after year.
Specifically, I’m talking about the commentary in EA Sports games. Whether you’re playing NBA Live or John Madden football, having live commentators lends a certain amount of realism to the experience. Sure, their puns are cheesy and sometimes there are glitches where they’ll tell you how bad you did on a great play, but overall I enjoy having someone critique my every press of a button.