These toilet paper tablets are great for personal hygiene, cleaning up messes, first aid applications, even as an emergency fire tinder. They pack down much more compact and dense than toilet paper, and are biodegradeable. They need a tiny amount of water to rehydrate and offer an efficient cleaning solution for more than just your backside.
I think he gets the price wrong. I found 500 for under $40 on Amazon and Wysi Wipes at 100 for $15.