Jon:
Our courses are actually pretty spread out:
NY 2, NJ 1, PA 2, MD 1 (now defunct), VA 1, NC 1, SC 1, MI 3, IN 1, TX 1, AZ 1, CO 2, MT 1, WA 1, OR 3 (if you count The Sheep Ranch), CA 2. Plus 5 out-of-country, so far.
Chip:
Yes, irrigation costs (because of PVC) rise and fall with oil prices. And everything that gets traffic in Denver requires irrigation. Denver is much more of a desert than most people realize.