Regarding one comment that Zippos are obsolete: This is SO wrong ...
Zippos are rebuildable and repairable. They can not only be re-wicked and flints replaced, you can carry spares IN the lighter. You can even use flints from empty disposables. Zippos function perfectly in sub-zero conditions where butane lighters can fail. The packing inside the insert can be used as an emergency fire starter (I replace the factory packing with cotton) - using the lighter’s own flint, no less! Zippos can be re-fueled, if needed, with alternative fuels, including Coleman or other white gas, alcohol, other volatile liquids I won’t mention here ... even gasoline in a pinch, which was almost universal in WW2. The standard inserts can be replaced, if desired, with a butane insert, pipe lighter insert, and liquid fuel tank insert (there are likely others as well, but this is not of interest to me). Some preppers accumulate a small supply of cheap Zippos for trading if the SHTF.
Zippos are far from obsolete. They simply occupy a different niche and serve different needs. My backpack has a couple of Bics - but also a ferro rod and striker - and waterproof matches - and I carry the Zippo in my pocket. We have a couple of Xicar lighters and a small, high-temp butane torch for use at home, and neither of us smoke.
Choices are good!