Brian, really depends on what you want to do with it. Bushnell makes one that holds 3 waypoints. It's mostly for marking your truck, go to your stand or two and then back to your truck. Others can give up topo maps, driving or location maps, lat/long coordinates, the only thing that will stop you from features is the depth of your pockets. With all the said I have Garmins. The oldest one I have is a GPS 11 model about 10 to 12 yrs old. It's not programmable and weighs about a lb but has gotten me out of Blackwater Swamp in Cambridge, MD a couple times. Doesn't work good under cover, though. I have several other Garmins also. Some are for my motorcycles because the hard drives are made for the rough ride of a bike. Others I use hunting, my wife has one 'cause she gets twisted around on our place here in SC. So, the bottom line is what are your needs and how much do you want to spend. Dang, maybe I do talk too much....ah,well, information is good.
Fred.....