99% of the plans I get for review/plan check are 'white prints'; ink jet, laser, etc. Sizes vary, flat, folded, rolled, and some coffee stained. It was a blast from the past to see a blue print.
I had a few arch/EE/PE guys send in digital plans, but we are not accepting them yet. Someday they may change state regs that require raised seal and original signature of Lic Design Pro. Going digital would save a lot of trees, and a lot of space.
The Twp Engineering Dept has three real nice, big plotters/printers, nice toys when I need something.
$$$, yes sir! The newest one was over 28K.