Definitely. Many of the largest crowdfunding campaigns of the past year have been self-powered (see Soylent, Tile, Lockitron, Coin, Star Citizen).

Might be helpful to check out Lockitron co-founder Paul Gerhardt's views on self-hosted campaigns: https://news.ycombinator.com/item?id=6261442

This campaign for Lammily is powered by our open source tool CrowdtiltOpen (formerly Crowdhoster). We've taken Selfstarter's awesome groundwork and turned it into an end-to-end solution.