I have to agree with your concerns.
I personally have decided against backing the Kickstarter, because of the price.
I'm sure there's careful consideration that went into their pricing, however you're very much correct with it being on the higher side. Indie projects I've backed with similar scopes are all around the 15 USD mark and to find out this game's full price will be three times as much, was quite shocking.
A higher price not only comes with less people willing to give it a try, but also much more scrutiny.
Nonetheless I wish them lots of success and hope they'll be able to create more games :D