They already sold them to distribution chains, on-line stores... why else do you think they are mass producing them in these numbers(1000 per day)? 
It will be interesting to see how many people purchase this system. Since its not for sale yet, the real popularity isn't possible to estimate.
However, its definitely way more than 1000/year.
I hope they're shipping these with good C64 emulation software. That could add to the appeal.
