Yes exactly!

Miners return BTC not USD, and generally at a *mostly* predictable rate, so if they priced it in USD (say $675 or 499 euro) heck that is little under 1BTC per and ROI becomes just a little over 3 weeks - why sell at all?

I've always bought miners with BTC based on BTC ROI, fiat price really becomes mostly irrelevant.  I don't think the ~45 day ROI payoff on these Furys are unreasonable at all, and in fact for an IN HAND ASIC is really is a steller deal historically!  (disclaimer:  I bought an 8 board set as a no-brainer with the price "drop" using already-mined coins, so my view is a bit different than someone converting fiat>BTC to buy these...)

I dunno.  Just compare to ASICMINER cube.  Same price, much more power draw on the cube for a fraction of the hashrate, and those are sold out!  (disclaimer:  I dump'd my blades a long time ago, just not worth the hassle/power draw, I guess I am biased...)