Looking good Acharis. I really should look into youtube videos. And GIFs, that's another one i need to look into.
I wouldn't be 100% sure without data backing it up, but I suspect if you were to look at most videogame Kickstarters, the tiers where no game is awarded see very few backers compared to the rest of the tiers. In many ways, KS is like a pre-order, but with even less of a guarantee of getting your money back if the game gets cancelled or the company goes under. (Though nowadays with the ability to pre-order directly from a company instead of a retailer, there might not be much difference)
Also, just an FYI because it was mentioned, T-shirts and posters and stuff...I think people should try to avoid those at all costs when doing a kickstarter. Sure they might be cheap to order, but then you have to ship them everywhere, and if you've underestimated shipping costs, one sure way to earn the ire of your fanbase is to go back and charge for shipping. Not to mention the time involvement of trying to fulfill all the physical orders. I think you'd be much better served giving out something like in-game credits, an in-game mention, access to an audio track or digital artbook, etc. Most of that is basically free. Keep physical content to the premium tiers.