I work in a position I am fairly happy with and am also reasonably happy with the location and pay, but I have this inkling I might be happier somewhere (physically) else and get paid more (including cost of living changes). It would take a fairly large amount to get me to leave where I am now, but I would like to take interviews for four reasons, 1. Gain experience with interviews -- I have only ever really had one (for my current position), 2. See what I am worth in the market ( I work embedded software and the market is (almost always) hot) 3. See what other companies are out there 4. Get free trips to other parts of the country.
I am fine using vacation to take these interviews. Is it disingenuous to apply to jobs in this situation? What should I say to interviewers? Do I owe my current boss an explanation (we are on very good terms)?