My wife and I are building our dream home and are definately going to spend the rest of our lives in that home. We are 50 and in excellant health. We want products that will last, but we dont want to be foolish either. Sears offers a lifetime warranty on a $450 hot water heater by Kenmore. It seems like a worthwhile investment to me. What do you think? The lifetime is on tank and parts, but not labor. Assume we will be in the house for 30 years.