It would probably last 20 years if kept in the garage and never used. It is a tool, and a good tool, but like all tools they are meant to be used. If taken care of properly, you will get your moneys worth, if it only lasts 5 years. YMMV
Webber 22 1/2 OTG Gold, UDS, rusted out chimney, Red Lavatools Thermowand, Maverick ET 732, 1950 model wife. Walking cane to help me get around.