The performance of the watch at all the shops in only one area is just a little anecdotal. Maybe you lived in an area with a lot of geeks.
Perhaps more telling is the fact that they kept returning to the Kickstarter well to fund each subsequent watch. If they were really selling that well, they should have been able to fund subsequent watches from the normal business proceeds of the preceding ones, rather than continuing to crowdfund each one. The thing about a Kickstarter is that it brings in a lot of business all at once…but at the cost of selling those same people something from a store down the line. And, as noted, it can make it look like more people want your hardware than actually do.