Man, your post is just so out of touch. Puncture-repair kits are cheap, you can find them from hardware stores for just a couple of euro even in countries seen as expensive. And those kits work just fine regardless of how cheap they are, because the tech is so simple and unchanged since a century ago: rubber patch, chunk of metal to work as a tire lever, tiny piece of sandpaper or other abrasive, rubber cement. As long as that rubber-cement tube stays unopened, that kit will last years inside a saddle bag.

I spend a lot of time traveling the world by bicycle (hence the HN username), and I have bought cheap Chinese puncture-repair kits around the developing world, whether in China itself, Central Asia, or Sub-Saharan Africa. They have always served me fine.