I have access to many newer pallets.
A pallet cabin or pallet home could be built using the many pallets I have access to. I even have thousands of used wood screws.
A home like these could be built for minimal costs.
I saw a show about that. Earth home or something. It's supposed to stay like 72 degrees in there all the time.
There's still a pretty good cost to building that way.
Unless you can get all the materials for next to nothing.
Tire full of dirt is bulletproof. If you use dirt and gravel in a slurry mix, you'll get good fill, and the truck tire sizes will stop .50 BMG. As to tire decay, it's not any worse than wood decay. Myself, I'd be tempted to use pallets inside to hold the sheetrock....