There needs to be a real performance difference to justify the price when the new memory technology comes out. Otherwise it's just going to be like ddr3, either you buy it cause you have the cash to spend or just because you want to have the "newest" stuff. With the bang per buck ration i see ddr2 sticking around for a while longer, especially for guys like me who live in mexico and paying 160 for 2gigs of ram is blasphemy.