I totally understand the "I like C#" argument - that's a personal taste, and we all have personal tastes when it comes to languages. What I don't understand is

I totally understand the "I like C#" argument - that's a personal taste, and we all have personal tastes when it comes to languages. What I don't understand is the "we can run it on one server, so Microsoft is better". The same sites could very easily be run on open source software on the same hardware or even less. I've never heard anyone, not even Microsoft, claim that Microsoft server software requires less RAM and processing power than open source software.