Although that "out-of-fashion" shirt is made from engineered meta-material and the trendy ones just have nice patterns. Seriously, did you even try C#5+VS2012+ReSharper? Add TPL, Rx and XAML to the mix for desktop or ASP.NET MVC WebAPI + SignalR for web.
I wasn't speaking about the tech, especially the recent one which I find to be pretty nice (well, some of it at least). My point was about perception of MS tools in the larger tech community. At some point you get tired of fighting this fight, and in the context of a startup this can hurt you, or so I think.
Sure, I'd wish the tech community was less prone to those useless battles, Well, unless it's about bashing Java-the-language, of course :p