I've heard rumors they are, and they're no longer listed on the Cadence web site. I wonder if this has something to do with why they've been out of stock for so long? The reason I'm asking is because I have a line on a couple of used 6004's, but I'd rahter buy them brand new if they're still going to be available. If they're not, I don't want to miss the oppotunity to buy a used one. I'm kind of in a pickle here.