I'm currently deciding whether to take up a tenure-track faculty position. It's a good position (R1, top-50 department in USNWR ranking), but I'm not very excited about it. In particular, the location is not to my liking. So I would seek to move elsewhere if I took up the position. That is, I would conduct another job search in 2-5 years.
This seems to me to be potentially unwise (as I have been told that it is hard to move between TT positions) and it also seems potentially unethical.
My alternative is to do another postdoc and try the job market again in 2 years or so. That also seems potentially unwise, as I have no idea what the job market will be like then and I may end up with even worse options. I'm also worried that I'll start to look "old" as a candidate, as I'm already 2 years out of my PhD.
I have talked to a few people. They have given me conflicting advice and they are not particularly able to relate to my situation, so I want to ask for some other perspectives.
My specific questions:
1) Is it unethical to take up a TT position with a desire to leave it? I.e. would it upset people when I end up searching for another job.
2) When evaluating TT candidates, does it look better to have 2 more years of postdoc or a few years as an Assistant Professor?
3) In general, is a second job search usually more/less successful than the first one? What factors might determine this?