My take on it is that machine gun mode does the wearing out faster. Precision parts do warm up and that would accelerate wear?
While machine gunning sounds like a way to get the shot- there are others out there that purport that the way to get that single shot is to - practice- and take it as a single shot. true- if we had a camera that took hundreds of shots per second- machine gunning would make sense. At 8 FPS- the difference in between shots is - 1/8th of a second. With practice- you should be able to get the better shot more accurately by practicing your timing- or so the theory goes.
It's even more of a difference at say- 3 to 6 fps... the lower the FPS, the better your chances of getting a single shot to work - over machine gunning..
The other side of the coin- is the looks from the others that can't do 8 FPS - when they hear your camera rattling off 8 FPS! Pretty sure nearly every 7D owner is guilty of this one! Sometimes, one does things- because they can!





