I'm not sure they could sell 1000 or even 500 copies. The market is small and it seems these days many labels have some difficulties with their sales.Their precedent CDR, ltd to 200 copies is still not difficult to find...I'm not sure, but in my opinion, 500 copies would "saturate" the market, the band has already released a few albums within a year. Maybe there's an over production in the musical "underground " scene, as a customer that became very hard to follow a multitude of bands...But maybe I'm wrong...I hope so...I'd be glad If they could sell 300 copies even if I didn't like half of their releases.
But I had thought the minimum pressing of a real CD is 500 copies, I mean that is the minimum a pressing plant will produce, normally.
...a lot of people won't spend money on CD-Rs anymore (myself included).