The land owner chip is a must have. Worth every penny. I have an Oregon 550 and it's been working like a champ for the last 3 years... Touch screen worked in 3 below zero in a snow storm. It does suck though, having to brush the snow off and affecting function though. There are pros to having a good ol push button GPS...
My Etrex 20 with the push button works fine but I haven't yet found a way to carry it so the button doesn't get repeatedly pushed. It keeps messing with the navigation. I've tried a couple different pouches and pockets but it still gets punched.
