Most often you pay for convenience. If you want it right now then Jaycar/Bunnings etc you can get it but will be a bit more pricey. The zippytieman site is Australian so will be quicker to ship, but again at a cost.Their dual wall heatshrink prices are 50 - 70% dearer than what I purchase. However, I have to wait about a month to get my order from China .
Yep. I plan way ahead. I know my supplier is cheap, the product quality is excellent and the delivery will take about a month.If you're happy to wait a few weeks (like I have in the past by planning ahead) then you can pick up a roll for quite cheap.