We're actually considering moving out of state because of the cost of living here.
My DH and I only have 2 dogs for now, and we live in a 1 bedroom apartment, our rent is $1375 a month in a good (safe) area.
We make more than the 90k like you said, but I just feel that we would be VERY limited if we buy a house here, our Mtg would probably be 2300 a month (at least), and just so that you get an idea pretty much everything is more expensive here, gas today is around $3.55, even the movies are almost 11 bucks (I've seen that in other places it's like 8).
At least you're a SAHM, because, for instance my SIL who has a 2 yr old is paying 13k a year in child care.
I would think very carefully about it.