Indeed - I'd prefer the smaller ones too. But I'm in for a couple of boxes of infantry, so if it doesn't happen I still get something I want (or rather, I'm highly likely to - only 10% off the goal now).
Best thing for you to do is wait until it's the goal is reached, or appears imminent, before pledging. or just wait until it's for sale. At the very worst, something that didn't exist... still doesn't.
I think Kickstarter is in its early days, and it's just a case of dealing with the hype sensibly.