If I owned a $2.00 meter and it sat in a box without batteries for 20 years, would you be impressed if I told you that my cheap meter lasted 20 years?
If that same meter was only ever used to test 1.5V batteries and it never blew the front end, then I said it was in constant use for 20 years and was never damaged, would you be impressed?
There is a member here who reviews meters who commented after I damaged a Keysight by rotating the switch a few thousand cycles. I showed how the switch was made with a glass filled plastic and broke all the springs. He explained how they rotate their switches 10's of thousands of cycles each year with no failure and made some half hour rebuttal video to tell us that. Not one test was ran, and they couldn't even pull the meter apart to show if their spring was made from the same materials. All they had was their expert opinion.
I attempt to test them to some sort of common standards and then document my findings. My motives in running these tests are out of my own interest. There's no Patreon account and no begging for people to like and subscribe. I've been called a fan boy from time to time, most of what I will comment on is based on the data I've collected.