I've often wondered why stack based architectures haven't hit the mainstream. Burroughs / Unisys had stack machines that outran competitors in everything but m

I've often wondered why stack based architectures haven't hit the mainstream. Burroughs / Unisys had stack machines that outran competitors in everything but math intensive programs. With popular languages following in the steps of Algol I would think stack machines would be a good choice. We always talk about passing things in the data stack and pointers out to other data elements, both things a stack machine excels at.