hate GPS's, Ive seen a lot of glazed looks when the batteries die or they can't get a signal etc. or their GPS says go this way and there is a sheer 30' bluff or 100 acre deadfall pit right in that path and the GPS can't tell you that. Maps - learn the lay of the land, memorize. ( I usually more orienteer than anything, and there are certainly enough landmarks to keep myself well oriented in Colorado, the desert in west Texas, maybe not, but the mountains in CO, it ain't too bad from my experience. As for maps, I've been over them pretty heavy, aerial views, topo, terrain, etc. )
That's all well and good, BUT when it's dark, foggy, or snowing heavily, and you can't see more than a couple of yards, a GPS smokes landmarks! Plus, if you shoot any elk, and it so happens to die it thick dark timber, having a GPS to input the location, is a lot better than tieing those damn pieces of plastic on every other tree to mark the trail. I hate orange marking tape!!
Also, if you find a spot that you really like, and you decide that you want to be in that spot before daylight the next day, or a few days later, a GPS will get you back to the spot in the dark, in heavy snow, in fog! I won't go without my GPS, even though I do also carry a map!