I was able to add one to my cart just now and make it to the Proceed To Checkout page. So doesn't look like they're sold out just yet.
Very interesting...
I decided to give it a shot - somehow they managed to get a few more in stock. I managed to drop three into my cart - and got told as I went to fill in the shipping/billing info that one was no longer available. Paid for two, got confirmation by email a moment ago.
Funniest thing, too - I went BACK to the store, put three more in my cart, no problems. Got as far as the Customer Info window so far, no notice that I over-ordered or that any were bought out from under me. Makes me wonder if they really did make just a hundred decks. Also makes me wonder what's up with the ordering software - clearly it doesn't have an accurate count of what's in stock.