Well, don't let your first (backing) be your last.
It always amazes me that people create a campaign and they expect support. Yet, they have not backed one, NOT ONE campaign. Don't even think of creating a campaign if you have not backed one.
Again, congrats to you and the others for paying it forward and becoming backers. I tend to back a lot of campaigns. It's not that I donate a lot of money - I don't but I do write a supportive comment and try to spread the word. Never under estimate how much a small donation, along with follow-up support can help a campaign.
Still in doubt? Read this
http://amzn.to/1xBWz1v