My impression is that when they look to buy, they get whatever is the best fit for them at that moment.. (maybe biased by various "gifts" and such to the right

My impression is that when they look to buy, they get whatever is the best fit for them at that moment.. (maybe biased by various "gifts" and such to the right people) When it's time to upgrade the old stuff, the process happens again, and the previous gear more or less entirely retired..