Actually, one other thing I forgot to mention is how cheap hardware is when it comes down to it. I think when people argue a point of “Well, if we weren’t using X framework we could get 200 more active sessions out of each server.”, or something similar to that. I think the cost for some additional hardware vs. the cost of a non-standard development platform (and I’m talking time, money, opportunity cost, etc. not just the raw dollar amount) is a fairly futile argument to present.