Post-doc philosopher here, and I think we've chatted before Booboos :-]
For similar reasons to Booboo, I am likely getting out this year. I love my subject, but I am very disillusioned by the machinations of academia. The pressures are immense and mental health problems amongst academics are rife. I'm convinced the stress of it led to what was essentially a breakdown in Feb-May. Only now am I recovering, and I am dealing with some physical problems.
Whilst lecturing, I also had the problem of increasingly larger class sizes. 20-25 in a seminar was just too much.
I also have zero interest in making myself competitive enough for a permanent job. At my institution, we have just had 143 applicants for one lectureship. 143!!!! I can guarantee that many of those will have profiles rivaling that of some professors, and yet, they will be bouncing around on exploitative teaching contracts.
No thank you. I have done that. We are a Northern RG uni, and your child is likely to be taught by someone stressed out from trying to teach a stupid number of modules whilst publishing their way into a permanent job. The student demographic is also changing for the worse: I am bored of teaching expensively educated teenagers who lack a certain 'spark' and think you should instantly do what they say because they are paying 9K a year (I give you someone who expected private lectures after they missed most of a module).
I have one invited journal paper to finish, and then I am DONE. The only emotion I can muster up is one of relief.