There are some folks around where I live who have more money than sense.
My LBS always has tubes with punctures from 'poor' individuals who take their bike in for a puncture repair.
The kind lads in the LBS give me the punctured tubes and after an hour and some patching, I have spare tubes coming out of my ear-oles.
There are others who,,, only use a tube once. Puncture = scrap.
Bulk buying, as they argue, is less expensive than repairing - including the time it takes to sit at home rubbing with emery cloth and waiting for the rubber solution to dry. Time is money, right?
Nope, They don't know how !!