I bought an HP-15C LE from Buy.com when they first came out because they had the best price ($90 with free shipping). They sold out quickly of their own stock, and for awhile had a listing from Samson Cables for $200. Eventually, they removed their HP-15C LE listing altogether.
But now, the listing has returned, including a link to be notified when the item is back in stock. I take that as a sign that they have placed another order with HP that was accepted, and that they will have stock in the future. Pure speculation on my part, but it fits my observations of past buy.com behavior.
http://www.buy.com/prod/hp-15c-scientific-calculator-limited-edition/223173356.html