So this will obviously be personal, as you said maybe you just want validation for something you'd do anyway, but on the face of it without having access to the emotional and self fulfilment aspects of each proposition, leaving sounds like a really bad idea.

Leaving for higher pay, leaving for a new lifestyle and adventure in a new location, leaving for work you'd never have considered but will be really unusual and interesting or leaving for lower lay and insecurity but in a field you've always wanted to be involved and is worth more to you than the money and security; sure that all makes sense but unless I'm mistaken this sounds as though the other job is just a different job not one that holds a special appeal to you.

So unless there's some extra psychological component to this, I can't really see the advantage.