It has been sold out since years, and the Pine folks said most probably will never make another batch (they complain that it was their worst selling device ever, and they don't want to make any more before full software support).

I tried to get one since years for fun. The only one that I found that was also shipped to my place was in China, and the seller asked for $1000 (+shipping) for it. I passed. And slowly giving up on buying one.

(Also, with it's RPi3-ish SoC it is not really a laptop replacement)