Observations:
First, Mitutoyo sells at least 3 lines of electronic micrometrs in the 0-1 or 0-1.2 inch ranges. On amazon their price runs from $135 to $600. (Don't compare a Quickmike - which I dearly love but are hyper spendy - to something cheap. That's not a sensible comparison.)
Second, on Shars, there's a Mitutoyo 0-1" listed for $119.
The nicest Aventor seems to be $80 (without a cert...)
Given the comments above, I'd be willing to try the Aventor.
The ones that are cheaper, that look like they have plastic thimbles, to me, look a lot like a Follower I had which did not work very well at all and got replaced with a Mitu.
That said details matter - on/off switch or auto? set 0 somewhere other than physical home? incremental mode? do you use these things? do you care? and of course, ip rating...
I did buy a really cheap slide caliper (not a mic) off amazon (it was like $20 or something) and it seems to work just fine. And it was so cheap I was OK with it maybe being a failure. I don't see any electronic mics that look like I'd want to try them for that low a price yet.