My wife enjoys listening to me play, and has re-arranged the house so that she can hear me play more easily from the kitchen when she cooks. Since i started playing about 2 years ago, my children have both taken up musical instruments themselves and my wife has returned to playing music after a lapse of about 15 years.
Thats great about the kids, but with your wife's appreciation, with all fairness, 2 years is still in the honeymoon phase!