Like Reb said the chips are the same price anywhere. You can get chips that do not have landowner contact info and save a few bucks. You get 3-4 states per chip for $100. They still show all the same info private, BLM, school trust, just no names and addresses for private land owners. Nevada only comes by itself and is $120, the extra cost has something to do with private property records having to be purchased from each county. oNx ends up being a pretty large investment if you travel to hunt. Kirsch maps are easier on your wallet and do the same thing. I would avoid the oNx phone app due to the costs and the poor reliability of cell phones in general. It has a monthly or yearly fee and the maps are not as detailed as the SD card versions. You will also have to cache maps to assure it works in the field.