Like many folks, I've always been a fan of cool handouts for RPGs. Items that are evocative of the setting and/or genre of the game. In this case, I thought it would be a nice tactile handout for the game. A bit more interesting for the players than giving them a piece of paper.
The PCs in my Wastelands of Kreth campaign do not possess a map of the Wastelands. They will soon. At least a photo anyway...
Unfortunately, in terms of using the leather map handout, our current campaign is played via Hangouts. So the players will have to wait a while until we all get together to actually get the tactile experience! lol :-)