I would argue that Kickstarter funding is basically equivalent to a sale, and dissimilar to angel or venture funding. For one, you don't give up equity for Kickstarter funding.

In general, regardless of how much funding one might have, one would also like to have the maximum dollar value of sales possible. Kickstarter facilitates this both by enabling sales-like revenue in the first place, and by enabling price discrimination. I'd need to learn more about the Kickstarter funding mechanism to understand whether the sales analogy is totally appropriate or just partially so, but it seems to me to be the far better analogy when compared to venture funding.