Richard, they are a lot of different thoughts on the subject of buying discounted Phals. Some people here have the magical touch and manage to bring them back to life. I am not one of them, that is why I always prefer to buy healthy plants.
I figure by the time I buy a new pot, a bag of orchid bark, repot the plant and then wait a couple of years to see if that plant might rebound or not, I might just buy a healthy plant, preferably in bud and enjoy my new pretty Orchid.
Besides, Phals are truly mainstream Orchids nowadays and quite reasonable in price. But I would never discourage anyone from trying to rescue some, if they want to try experimenting.