To counter: the Pi Zero is coming on for 18 months and is still regularly sold out. I'm not expecting mass quantities on release, but the problem is that you c

To counter: the Pi Zero is coming on for 18 months and is still regularly sold out. I'm not expecting mass quantities on release, but the problem is that you can only buy one which makes development difficult. And if it's anything like the original zero, we'd have no idea when it will be available in quantity. Often it's useful to have more than one board e.g. one bare dev board, one in an enclosure/prototype. Having a month or more lead time for a replacement isn't practical.