I'm PHP all the way usually and I get a LOT of flak for that, but it works out fine for me and, given the exodus to Ruby/Python over the past few years, I'm picking up a load of work that people are finally realising they can't hand off to that schoolkid for $50. It would take a lot more than comparable or merely better tools for me to make the jump.

If you want a bad analogy (and I KNOW you do!), I want a VHS->DVD jump rather than DVD->Blu ray else it's just not worth my while.