Multi-letter variables in RPN

[DrD]

I also have an hp50g sitting in a drawer now, which hasn't been used since at least 2013. I have never used rpn mode on the hp prime. If rpn mode was eliminated from the prime, I wouldn't miss it. I use the prime almost every day, and before the prime, I've used several models of hp rpn calcs over the years. It took a little while to get over the rpn thing, but I don't even think it any more. It would be a little awkward to go back to the 50g now.

Considering the market objectives, to make a case for retaining rpn mode on the hp prime, (or any future generations), what value added justification can be made?