Also, you can achieve some pretty fast development velocity with .NET. C# is intuitive and the tools are great. I know everyone complains about Visual Studio, but even it's most vocal complainers will admit it sets the industry standard for debugging.
One sticking point is that the tools, while community and small projects, are all behind a license. But, they are free for small teams making under something like $1M/year in revenue.
One sticking point is that the tools, while community and small projects, are all behind a license. But, they are free for small teams making under something like $1M/year in revenue.