I got a Siglent dual channel scope for something like £230 a couple of years ago. I forget what bandwidth it was (probably 70MHz or so). It's fine for Arduino / stepper / servo drive stuff and suspect it may be possible to hack the software-limited bandwidth if I could be arsed, which I can't. Doesn't have a battery, so needs to be plugged in, which also means the probes are connected to ground - worth bearing in mind if you like blowing stuff up.

Even though these modern scopes are a lot more portable than the old CRO boxes, they are still a bit of a PITA for reaching into cabinets etc, finding somewhere to perch them, wires trailing everywhere etc.

I recently had yet another accident involving a mouse and ended up with one of these Chinesium pocket scopes.

Although it's tiny and self contained, the menu system takes some getting used to, not least as my brain is not as nimble as it might have been, after years of flagrant self abuse. But it's quick and easy to connect up, more like a pocket DVM than a normal scope. It's also electrically floating. Horses for courses.