How often does each individual part of a Zippo Lighter need to be replaced?

I am thinkin' of buying a Zippo lighter either from the official Zippo store or another site that will customize it more, and I was wondering. They offer replacement Wicks, Fuel and Flints for the lighters, how often will I need to replace each of these (i.e. How many lights will I get out of each one before needing replacement?) ?





Thanks for any help.|||When the time comes you'll know