I have properties with rental water heaters and properties with owned water heaters. I don`t mind the rental fees. Service is better that way. In all cases I have simply kept what was there when I purchased it, whichever kind it was. The $11-$15 monthly cost is minimal really in the wider scheme of things. I`ve heard arguments both ways. When my last owned heater died, we had reliance come and put in a rental. Whichever you prefer. Sorry, not much help there.