Why is it impossible to find a small advanced calculator? I use an hp-35s now but I hate it. I want a calculator with rpn, programmability and an equation solve

Why is it impossible to find a small advanced calculator? I use an hp-35s now but I hate it. I want a calculator with rpn, programmability and an equation solver that is pocket sized. I understand rpn is niche, but relaxing that restriction still only finds you huge graphing calculators. SwissMicros has a range of credit card sized calculators that are so close to what I want. However they are running hp firmware in emulation and I don't believe that any of the firmware they are using have an equation solver. We have the technology now to make an advanced pocket sized calculator I'm sure. Why does no one want to release one? The calculator enthusiast community seems content with just emulating 30 year old calculators and everyone else is just selling calculators for people that need to take standardized tests.