So Costco has the GPSmap 64 (no maps) for $170. I don't plan to use this for vehicle navigation but rather for hiking and biking and as a backup GPS. Eventually I'd like to get a 66i or the new Montana 700i with InReach but it's not in the budget right now. I like that the older GPS takes AAs also. I will probably be getting a Gaia or OnX or similar subscription as well, but I like the redundancy of a standalone GPS. I plan to research and make sure there are free maps for where I want to go before I pull the trigger, but is there any other reasons not to buy that I'm missing? They've also got the Oregon 700 but I'm not sure I like the touchscreen aspect of it.