Vandas do grow in pots. I have no time or the location to have the drenching water fall without soaking tons of stuff that would rot away with all that water every where. In my over crowed greenhouse, even the size of a basket takes up too much solar cross-section. Here is the picture of one of my Vanda's roots while repoting, if anyone has not seen it yet. I find the Vandas drain their pots dry quite quickly, so it is hard to over water them.
http://www.pbase.com/schnitz/potted_vandas
I just bloomed a Vanda sanderiana X scandens that I have had for 10-15 years, from seedling to ~2.5' tall. It is unfortunate that I don't know where I got it, as it has never been registered. It has medium flowers with soft pretty uniform gray-brown spotting. Not exactly a knock out, so I guess it was not considered worth registering. Will have it up on my site in another week or two. Cynthia