In the late 70s I worked for a couple of guys that ran a custom shop, one was my neighbor that would resand the clear off of every motorcyle mural he ever painted, I was 17 and I'd ask myself; why... what is the difference... the guy did great murals and great finishes, it was I suppose, the pursuit of perfection; here was a guy that took a 240 Z and put a 340 with a four speed and eleven inch discs, and... well...
I followed him driving that car one day through a traffic circle; I just picked up the 427 [for the third time] from corvette specialties; [could never get the white paint to match the white body; it was ivory, all you had to know, anyway] half way through trying to catch up with that 240 my automatic in the vette shifts and both rears break, never forget it.