1) What is your system of measuring this? This may be because 99% of what you need to develop a very fully featured app is already in the base .NET frameworks. So there is rarely need for 3rd party libraries unless very specialized. The vast majority of the code we need outside of the framework is very specific to the user's problem we are trying to solve.
2) This is complete and total b.s. Please enumerate an example (or two) of deficiencies of a .NET driver vs a counterpart in each language: Python/Ruby/PHP/Java.
3) Maybe many .NET shops are simply in love with the productivity they get out of their .NET efforts because of the integration between MS stack components from development through deployment.
4) Huh? I guess maybe if you have to install .NET framework on Linux you'd notice it's size. It's not like you have to go installing and deploying it everywhere if you're on Windows. You use what you want and never notice the rest. As for VS, it's actually pretty awesome. I interviewed someone today and watched him use sublime to develop a rails app and marveled at how stone age the process was in some regards (this sounds like a dig at rails and sublime, but I don't mean it to be. Some stuff was done very quickly and easily. Some aspects of Rails and Ruby in particular are really cool).
5) You don't know what you're talking about. I've deployed in 1 click to AWS and to my own dedicated servers with one click. Technet? I've been using .NET for 10 years and have never used Technet once.
