They discontinued them again..........check out some smaller shops where things don't sell so quickly. New ones are about 900. Then there is always Ebay.
I don't think they are completely discontinued, they are just being re-designed again. So they stopped production so they can dwindle out the supply to make room for the new model. They should be available still fairly easily. Aren't the current ones the Top Boost? Wonder whats next.......
Isn't it funny how you can have "vintage re-issues" that are re-designed to be "better".................................