"Property taxes are higher, but housing prices are lower in TX than CA. From what I've seen they are a bit of a wash (tax rate is double, but housing prices are 50% or less)."

This was true years ago, but the cost of housing in Frisco TX and San Diego CA are about the same now. If anything, San Diego may have an edge because it has many older, smaller properties that keep the overall cost down compared to the newly built up mcmansion land of Frisco.