Brotherly Monkey is right... the sellers of these blue orchids do not expect their buyers to keep them until the next flowering.
This is the same in most of the NoID phal market. And unfortunately in most cases they are right. My friends believe you can't keep and can't rebloom Phals. You buy them for the flowers then throw them away when they are done. That is the market the sellers are aiming at.
(I'm glad to say I've helped a couple of people at work to keep theirs, one of them has kept one three years now and it has rebloomed twice. He's thrilled because his wife was convinced he was killing it by following my advice
)