Yeh, that is certainly true.
I think they will do just fine and there are over 10 months till the release date, so anything could happen then; a Pokemon X and Y 3DS to celebrate the release even.
I think Pokemon isn't going to die at all, but some people will be reluctant, of course.
I think the price will have dropped a bit by then, anyway. So maybe it just seems like a lot now, to people who are only interested in the Pokemon game. There are still 10 months for exciting games to be released.