Well, houses would be your most valuable asset if you actually OWNED it, just as your car if you make payments. You don't technically own anything that you are making payments on until the loan is paid off. Look at your equity position in an asset to determine exactly how much you own. That being said, while I have cars that are worth as much as some houses (57 T-Bird, 66 Shelby G.T.350H) I guess my lake house is my most valuable possession since it is completely paid off, well it was actually built along the way with no real mortgage so it has always been OWNED so to speak. There were times when my cars were the most valuable asset I owned since I have always paid cash for cars as I refuse to carry a note for a depreciating asset....well, 4 of my cars actually go up in value every year is seems but that is a completely different thing.