I don't get how some people will opt for smaller sensors or even inferior camera bodies because of small reductions in weight and size. Are you that weak? We are talking about TINY reductions in weight. Heck, in the case of m43, the cameras are often heavier than their APS-C competitors (see pic related).

I understand the reasoning: "if my camera is lighter, it's easier to carry everywhere so I use it more and get better at photography."

But this really only applies to BIG size differences. This reasoning makes sense when comparing a pocket digital camera to a DSLR, not a mirrorless APSC vs a M43, both of which are pretty big regardless. Again, are you seriously that weak?

The real benefit of these smaller sensors is their reduced tendency to overheat when recording video and their reduced cost.