See? You're already use to heat and sweat and humidity!
May as well make the change now.
Oh...and Texas has no State Tax to deal with.
I've actually looked into living elsewhere...but the cost of living here is actually pretty low and the cultural offerings (theater, art, music) are readily available. (I have most everything available within cycling distance...and the Richardson/Plano area is pretty bike friendly)
(shameless promotion ends)