Ask HN: Alternatives to setting up a Massachusetts LLC

I live in Massachusetts and run a small web app that brings in about $600/month.

While it's a low risk endeavor, I'd like to get liability protection to cover me in the event of some catastrophe. Setting up and operating a Massachusetts LLC costs $500/year [1], which s a lot relative to the app's income.

Setting up and operating a Delaware LLC, on the other hand, is $90 formation fee + $200/year franchise tax + $50/year for a registered agent ($250/year), which isn't much better, especially when you factor in the complexity of doing it out of state.

Have any of you been in a similar spot? Any recommendations on how to proceed?

[1] http://www.sec.state.ma.us/cor/corpweb/corllc/llcinf.htm