I have a hard time growing them, and I live in a subtropical climate.
Angurek, that's what *I* thought too! Until in the particular case of V. coerulea, it was recently pointed out to me by Ray that that is in fact a cool grower.
I will confess, I have all kinds of humidity where I live... and I feed this more heavily than any other orchid I have.
My Vanda (I only have one) is planted in osmunda in a teak basket. I've had it about 3 years, and the plant is very healthy. It hasn't bloomed yet but I think that's because it is not getting enough light. I recently purchased T5 lights and have also been giving it some direct sunlight, so hopefully I'll have blooms next year.