Hi, Kiki
I also don't grow many of them (maybe a dozen, or so). I like Paph species, but they are extremely expensive here in Brazil. Small seedlings of desirable species (one growth of two, three small leaves at most) are not sold for less than U$ 150.
Very nice slipper too, all your plants are so well grown. I'm willing to bet that this particular paph wasn't so cheap either. The most I've paid for a slipper so far is only about $100, so guess I'm pretty lucky in that regard. Now I wish I had a little more luck with the cattleya family.