I don't have either, but wouldn't mind at all if I did have a GPS. I'm usually going to the same areas I have for years, so know them pretty well and what I'm going to do, where dirt roads go etc. There have been a couple times though out in the desert where it all looks the same and started to get nervous where to find my truck again... would have been handy, LOL.
I have both, I agree that something can go wrong with the electronic device, batteries always die when you don’t have any spares or are using the spares. You must keep up your skill with a map and compass and know how far you have traveled,, has your pace count changed over the last couple of years?
From the books that I have read, there is a lot of importance in knowing every nook and cranny of your hunting territory as well as the animal that you are hunting. So scouting as much as possible, just walking the land, will give you a good idea of what's around the corner or what's on the other side of a hill. Which can be very beneficial.
Making your own maps of human and deer trails, and different types of foliage such as group of pines,...