My understanding is that the only reason EA stopped making Sims 1 expansions was that because of the way the game was created, testing each subsequent expansion became an excercise in exponential math (testing the first required the original game + expansion, the second required the original game + expansion 1 + expansion 2, OG + X2, the third required OG + X1 + X2 + X3, OG + X3, OG + X1 + X3, OG + X2 + X3, etc). The Sims 2 was intentionally designed to get around this problem, so they shouldn’t have to stop releasing them…ever.