Some friends of mine who have yet to back the game are more or less skeptical of the game. Given that this was crowdfunded through Kickstarter, there are plenty of ideas/businesses that take the money, give plenty of lip service; then end up vanishing.
However, these are people that will back the game once it's out of its alpha stages to at least show more promise towards their investment(s). For them, there's no other incentive other than a head start rather than a game breaker exclusive. This is a new unique style of a game/gameplay while many are trapped in the old saturated ways.
I've been still trying to convince them since December of 2015. I know it was a bit early in development back then. Only they can truly say what's holding them back.
On the other hand, I've also backed with another account for the wife who wants more of an immediate satisfaction if she were to purchase a game. So given the wait time till Beta or full release, I can see why she is looking elsewhere for the time being before investing here.