HP Prime too complicated

[DrD]

Advocating for the devil? I'm not sure the devil needs an advocate!

How gradual should the transition phase be? You are looking at the wrong unit of measurement, here. The correct measurement unit is not time: rather when will the return value become less than the cost of replacement technology? (i.e., return on investment).

By way of my example, a utility using 1980's technology 24/7/365 and requires very little maintenance. The ROI is still worth it 30+ years later!

By way of hp calcs, when should you throw away your hp 48, 50, or whatever?

If the hp prime could support I/O, with the addition of a few commands, the enhanced value of the prime, over previous products, would make the ROI for this case, worth it.

-Dale-