I see a few reasons why this deck is going to make it.
1) Slap the name "steampunk" on anything today, and there's a hardcore market of posers who will snap it up as if their lives depended on it. Especially if it has "faux steampunk" elements to it like cogs for hairpieces and necklaces and rust on everything. As the concept of steampunk filters to the general public, it's being twisted, filtered and watered down. This deck is one of the countless contributing factors.
2) The "goal" was so insanely low. I don't know if I could make them with my computer, printer and some cheap card stock for that price!
3) They're going with a crap-quality manufacturer.
If these guys were serious about making a deck, they wouldn't have used the company they did. They just wanted to see it get off the ground, period. Worse, it wouldn't surprise me in the least to learn they failed to cover certain surprise costs related to the level of customization they're aiming for - meaning that even if they hit their mark and beyond, they may still fail to get this project off the ground.
It's wait and see. Or more like sit back and watch, since I wouldn't buy this deck. It's more like a train wreck about to happen. You see the train, you see the broken track, you know the train can't stop, but it still has time before it gets there... Pretty, perfect-looking train...