I say that you definitely
need to go down in person and check it out. Really pay attention to the little nudges that your heart or your brain might be giving you. I had an offer 2 years ago after a phone interview in NC, and being fresh out of college, I was really flattered. However, there was a part of me that was leery about being offered a job after only a 15 minute phone interview. I hadn't been to the school, met anyone in person, etc. The principal was the same way..."what can we do to get you to come, what grade level would you like to teach" etc etc. (They were hiring for several positions.)
Again, I was flattered, but with a job market like this, there was a little warning bell in my head that said "why is she so eager to hire you without even meeting you". So I said that I wanted to fly down and check it out, and when I did, I found out a lot more about the school. It was near an army base, so the student population was very transient, which isn't "bad" but would've been hard with kids coming in and out all the time. It was also very rural, which I didn't mind, but the "town" was full of porn shops and other things like that because of the base being so close. The nearest towns that had things to do and looked safe enough for a young single girl were 45 minutes away, and in fact, all of the teachers lived about that far away from the school.
The principal seemed very nice to me, but was almost pressuring me to take the job, and the other teachers seemed a little nervous around her. I think that school morale might've been a problem too, because out of the 6 questions I was asked in my interview, one of them was "How will you build relationships with other staff?"
I was soooo tempted to take the job, especially considering it was late August, but in the end, I decided that it was just too far away from home (about 14 hours) and I wasn't completely comfortable with the area and the school. I did have to take an aide job last year, but then last summer I was offered a job in a great district at a school that I absolutely LOVE. It's still 5 hours away from home, but it's actually where my boyfriend's family lives (and where he had just moved back to), so it worked out perfectly.
Bottom line is: go there and check it out for yourself. If it seems like a good fit and a place you could see yourself living for awhile, take it. If something is telling you to keep moving, don't be afraid to listen to that voice.