One of the questions that should be considered is exactly how do you define a long term bug out vs displacement, and do you want to factor in TEOTWAWKI theories?

To me, bugging out to a remote area, where there is no one for miles, is pretty silly. If it turns into a displacement, then sure, you've got a place to sleep, but you are also miles away from anything that resembles even emergency employment. What is good for zombies and terrorists seizing control of space based death rays isn't so good for a case where your old job isn't even a foundation any more, they think they found the company's owner but only from the shoulders down, and your apartment is drift wood. :P