If you are a disabled person who wants to visit the back country then the $30,000 (or more!) robot wheelchair is your only option. We shouldn't make all mountain trails ADA accessible. My local park system has a few accessible trails (the majority are not) that can get them to enjoy nature, if that isn't enough spend the money on the robot.

However I'm only willing to take the above position because there are plenty of other options. There are a lot of fully able people who live life without going to those remote places and don't miss it. I'm not fine with saying the local grocery store is not accessible - they cannot live without that. Most of what exists in a city should be accessible to everyone despite disabilities - the cost to provide this is not that high.