The perks are not a gamble. If the project creator fails to deliver, you are entitled to a refund. Straight from the Kickstarter Terms of Use: > Project Creato

The perks are not a gamble. If the project creator fails to deliver, you are entitled to a refund. Straight from the Kickstarter Terms of Use: > Project Creators are required to fulfill all rewards of their successful fundraising campaigns or refund any Backer whose reward they do not or cannot fulfill.