I actually wish there was a modern dot matrix printer. Being able to print only a few lines, then tear off a short length of paper, would be nice.
How about a non-inkjet color printer that doesn't cost an arm and a leg in supplies?
Ought to have mentioned Heaviside, as Maxwells four equations in differential form are a product of Heaviside. He is also responsible for coaxial cable, the Laplace transform, and many other things. Heaviside made Maxwells equations practical.
I dunno. My yearly salary as an EE is 3x what my entire undergrad education cost; grad school was free. I know this is anecdotal, and I graduated 20 years ago, but it has certainly been a worthwhile investment.