I went through the same, being a one man show in a small to medium business, after moving to a big city, following my wife on her career path. Everything was quite all-right but I knew I can do better and indeed after less than 6 month a new opportunity arise, basically one block away, with a 33% increase. I was not so sure the environment would be as nice, but the IT part of the job itself was at least as interesting.
When I presented the situation to my boss, she asked me if I would be at all interested to stay, in case they can match the other offer. I said I would definitely think about it, and sure enough in half an hour she came back with good news. I didn't think much honestly, I never thought they might play tricks with me, I did trust my boss with whom I had (I think) a very god professional relation).
I stayed there for the next 4 years and a half, until the mothership decided to move the company to a different city.
Maybe I was just lucky.
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