I went into teaching partially cause I had loved and valued so many of my teachers as a child, partially because the vacations are great, partially cause I loved it and partially because I knew I would never get rich teaching, but I would always have a job.
I am still teaching, and I still value many of the teachers I know and work with, I am still not rich but I do still have a job. I have managed to sort out my life so I almost never have proper holidays, which does seem stupid, but it is worth it.
There are times though when I am just tired of teaching. It is mostly before I start a class, but you know what is still really lovely about the job after all these years? This sounds like such a cliche, but I really like the students, very nearly all of them. Spending time with them and working with them, and showing them how to go about teaching themselves something is still really cool.
I guess I am lucky that way. I still groan about going off to work, and there are many things around work that are as annoying as hell, as they are for everyone; but once I am in the class with the students? It's normally really great.