I'm nowhere near the $230k mark but - based on my first paycheck so far - the increase will be well more than a mortgage payment for me.
I don't think it's the raw dollars that matter but what the alternative for those dollars are (aka opportunity cost).
You must have a very low mortgage payment.
Anyway, that seems believable for Austin, TX.
In my case, the going rate of a house similar to mine rent-wise would be about 50% higher than my current mortgage payment.
[1] http://www.investopedia.com/terms/o/owners-equivalent-rent.a...
Further, griping about the temporary 2% payroll tax expiring? It was done as an aid to a sluggish economy. Things aren't rosy overall, but they are improving a bit.