With some cabs so scarce now and prices High it's certainly one option if you want something.
Also some of the cabs that do come up are in such bad state you can end up half rebuilding them anyway, I like them with Arcade Battle Scars
and cheap
but not falling to bits bad because they been somewhere damp for years
Many cabs are far from original, if the cab itself is the artwork and or internals probably aren't so why not make new one, even if you put emulation in till you get original boards etc it still looks the part and can play it
Obviously some are harder to do scratch build unless you bought Control panels, Boards, looms etc when the parts cheap. anything Jamma with Joysticks is easy to do, boards easy to get, jamma loom, monitor and if wood CP with artwork it's job done easy