I have only been keeping orchids for about four years, and most of mine came from an in-person purchase at local orchid shows, but I have bought Phals online from Big Leaf Orchids, in Texas (Peter Lin is a forum member and posts here occasionally, and also sells on eBay), and from Orchids by Hausermann, in Illinois. In both cases, I received good-looking, healthy, well-packaged plants that I was very happy with.
FWIW, I've received some very nice, albeit young, catts from shermantp on Ebay. They were priced very reasonably, packaged carefully, and shipped promptly.