Save them. Because most of the future costumes going to be unlock via RE.net.
Yeah but probably not through RE.net points anymore, such as the case with the EX3 costumes.
I don't see why they wouldn't put the EX3 costumes up on RE.net when they're released. You can earn them through events, but I'd think allowing people to buy them via points for 60,000 points a pop would be a logical choice if they're planning on giving people incentives beyond the recolors, dioramas and the other lacking unlockables. Of course, I fully expect them to abandon the website and game shortly after they release the EX3 costumes and the other extra modes.