I think perception often becomes reality. Ponds here (Midwest U.S.) are just as popular, if not more so. People are staying in their homes (slow housing market) so they are spending on upgrades and remodeling their current homes. Gardening and beautifying the outside of the home is all part of that trend. Plus it's a relaxing hobby that is a great stress reducer and is of interest to the whole family. All good things in a high stress world.