Here's the answer to the question other than it being trendy and "hip": they LIKE it! Same goes for straight men posing in a thong on a stage in front of a largely gay audience (bodybuilding). After all bodybuilding begs the question from "regular people", "Why the hell would someone run their life, day and night--eating patterns, sleeping patterns, lifting, semi-starvation alternated with overeating--and sacrifice much to pose on a stage and receive little in socioeconomic reward from it?"
Same answer: The people doing it LIKE it.
That's a good enough answer.
Because some people like it and it's part of Crossfit training.
Not in the case of Crossfit or for those who simply like high rep Olympic lifts.
Not really, considering a sprint can't be maintained for much distance while a skilled person can perform a lot of reps in the O lifts if the weight is light enough.
So you want to be a disingenuous sellout -- to a great degree that is considering just how vehemently opposed to Crossfit are you. So you will get Crossfit certified and sport the brand which you have no faith in.
It is apparent that you have no idea what's in store for you regarding the difficulties of running a box let alone making it a profit generating one. If it could only be so simple as writing that on a blackboard and sitting back and relaxing. And if everyone in boxes were snapping their boxes as frequently as you imply, nearly all box owners would be up shit's creek!
I say this with NO disrespect: a cerebral guy like you should lay off the university textbooks and study reality and business more. Again, NO disrespect here (serious).