At the nine year mark, I am generally not concerned with the original builder near as much as with the current condition of the property. Centex has always hd a strong reputation for building a solid "no frills" house. But over the course of nine years, even a well built home will suffer if not maintained. On the flip-side, a simply built home may have had many upgrades done over the course of nine years. You're in a great position if this is the most pressing question in your purchase decision. Its always a good thing to hve a back-up plan, and it sounds like you will hve a good second choice no matter which yu pick as first choice. Youhave a lot of leverage in the first negotiation. I hope it works well for you.