Sure, but longevity alone is an insufficient criterion. There are a few venerable, perfectly adequate, stacks (for lack of a better term) that I would rather no

Sure, but longevity alone is an insufficient criterion. There are a few venerable, perfectly adequate, stacks (for lack of a better term) that I would rather not start new projects with. I say this as someone who once had to argue forcefully to start a new project in .Net while it was still in beta.