They cost next to nothing. Why not add it to the box of tricks and experiment???
cause i quickly learned they were mostly useless over 20 yrs ago and completely unnecessary. i don't like spending on stuff i don't need to. doesn't bother me if folk use them, but it's definitely not a crutch i'd depend on for anything.
if you do use them, you need to be exceptionally consistent in how you do it. new growers often don't have the patience or technique to get a useful reading.
in soil, learning the proper watering technique and watching what the plants tell you is the better way. most growers who use those meters will outgrow them with experience, or abandon them when they don't produce the desired results.