I have an unpaid internship for a very new startup company with little tech experience that's trying to be a Groupon clone. They're currently using Wordpress and I've been trying to decide what web framework to push them towards, since I'll have to learn that language and implement it as well.
Is ASP.Net MVC a realistic option for a web based startup company with little financial backing? For example, I know in the Rails hosting is slightly cheaper because of the whole free OS thing and there are free "gems" available to do things like a mailers, but how much more expensive can it get if I go with ASP.Net MVC since such add-ons stop being open source?
How much does the cost of hosting for .NET applications add to the equation?