The 48G was a really good calculator, but only after loading additional software. The HP50g that came much later is better in every respect, except possibly for the smaller "ENTER" key (and people used to 48G will have to change some habits and possibly redefine some keys…). Incidentally, many young people (yes, I know how that sounds) do not know how useful a good engineering calculator can be and do not want to lea…
I feel like this is highly role-dependent. I learned on an HP and I have my TI-89 from high school sitting on my desk, because I thought it might be useful. I never touch it. I never do math that's more difficult than arithmetic, and if I needed to do calculus or algebra for some reason I'd reach for Mathematica -- it's not like I remember calculus class anyway.
Hell I tried to help someone younger with algebra and forgot FOIL. I'm a successful distributed systems engineer. Why do I need an engineering calculator?