I have read and seen many deals that float higher than 750k+ EBITDA range and would love to understand more on the risks of buying anything smaller than that.

This is assuming multiple floats around 3x EBITDA. I get it is more of a "job" once you buy a company in the lower range but if lets say I am buying a 500k ebitda business at 1.5m, and when I pay loans per year, let's estimate 200k, its still net profiting around 180k after taxes. Obviously math is not that simple but I would love to know your thoughts.