In all seriousness. As someone with a great interest in bat production/performance, shaping, willow etc. And as someone whos always pained over every minute selection of gear. I dont actually believe the gains i might get from this level of interest are any more remarkable than the as you say joepublic and his more relaxed approach.
Ok, joepublic might not pour over countless threads on forums like this, or buy dozens of bats, net with them once and move on to the next, looking for some non existant miracle "pro" bat. Might not have the budget to even if they wanted. But ive been in cricket retail stores often enough, ive seen joe at work. Still picks up the bats in his price range, waves them around, his intention or not still to varying degrees establishing what feel/balance suits his taste. And then the mallets usually employed, generally met by the staffs gritted teeth. But again theres a level of interest in performance.
And yes joe might be attracted to a particular brand or model but i know i am too. So i dont see a huge difference there either. And at the end of the day, when me and joe take the crease, im sure we both assume a technically incorrect stance, waft at the first three wide ones we face and go out cheaply soon there after.
Maybe its just 99.9% of the effort for .1% gain?