Could it be better still? Sure, but I see no reason to assume that people are somehow lowering standards and not working on making it both cheaper and better all the time.

I just don't care how accurate that the watch is (thus far anyway) because the perception of progress—delusional or no—is why I use it.

Generally, though, my perceived performance is reflected in the relative numbers. If I felt otherwise I too would be complaining about accuracy.