I was once offered a job across the country. I was flattered and a friend's recommendation was involved so I wanted to be polite. Instead of saying "no," I said thank you so much but looking at cost of living etc it would really take (to-me absurd offer, benefits, moving support, etc). They replied back: you drive a hard bargain but we can do that. Welcome aboard!
Really well, at least in the long run. I stopped being a "big fish" in a small-town pond and ended up discovering more cool opportunities than I thought existed.
...shit. But yeah, I moved.