If you are waiting for the Vive to come out cheaper, I'd suggest you buy some booze and something to wipe your tears with now, as it's going to be MORE expensive than the CV1 is, as they just added that oh so important front facing camera, and don't forget, it comes with not 1 position tracker but 2! And it also comes with those handy dandy controllers that HTC/Steam put together for use with it as well, which bumps the price up.
I was figuring the CV1 would be around the $600 USD mark for commercial release, it's new tech and it's built with good materials and designed to be customized for differing head sizes, ocular positioning and so on. The Vive I figure will be +200 more than the CV1 due to that oh so fancy front camera, after all, that thing pushed release back for months, can't have been easy or cheap to get it in there. Add in the extra positional tracker and the controllers, at least another +200 for those, I figure the Vive will be in the $1000 USD range, might be as low as $800 USD, but I'm thinking a grand is the most likely price when all is said and done.