I'm actually way more comfortable with Django, but the Gem eco-system with Rails is amazingly mature, and the Rack based approach of Rails 3 seems to have positioned the framework really well, architecturally. I found Ruby/Rails idioms pretty confusing when beginning. But most of the learning curve w/ simple projects is really about "where stuff lives", and that's the same effort to learn in any framework.
Django pros: Admin, Python, Explicit model definitions (not via introspection like Active Record), South > Rails migrations (IMO), easier to create relational models, query syntax rocks.
Rails pros: Gem ecosystem, Passenger, Capistrano, Haml/Sass, Mailers
re: Pricing - TBD :)
