If you're developing with .NET, you are best off using the whole Microsoft stack. The vertical consolidation and tight integration is the benefit you get for th

If you're developing with .NET, you are best off using the whole Microsoft stack. The vertical consolidation and tight integration is the benefit you get for the high costs. If you mix .NET code with significant OSS components (i.e. databases), you will incur a lot of extra setup work and hassle. There is less of a community and therefore you'll have to figure more stuff out on your own. If you're a .NET programmer for life, then this is great experience for you. One of the traits of a good CTO is to access the community around a mix of technologies (i.e. C#/Sql Server, C#/MongoDb, or Ruby/MongoDb). If there's a good community around your technology stack, that'll streamline development a lot more. Things will just work. Many people will have already solved the problems you're bound to have.