Can rails really pay that much better?
Maybe, but money is only one part of the equation.
Ruby on Rails has some awesome tools. I'm not sure how familiar you are, but look into rspec. It makes unit testing hilariously fun:
describe "GET 'home'" do
it "should have a home page" do
I love how Rails manages dependencies for me through the Gemfile (this is where you specify which gems or plugins you want, including specific versions), and you can bundle them all using commands such as:
bundle install (installs the gems)
bundle update (updates your gems to the latest version)
Also, it utilizes SQLite3 and a really cool ORM through ActiveRecord. My Rails environment occupies a small footprint in my OS X setup, plus it has nifty gems like Redcloth, HAML and SASS (Syntactically Awesome Stylesheets).
Plus now that I'm contemplating going solo, Microsoft's not cheap. Visual Studio, MSDN, OS licensing, hardware...it's not cheap! I'm not trying to denounce MS or .NET, I love .NET and will never quit learning it. For now, I'm really digging those whole other paradigm; it's helping me see C# in a different light.