Speaking of lifetime warranties, in the latest issue of Hemmings Classic Cars, there is an article about a guy and his '67 Galaxie 500. After he bought it, he had Montgomery-Ward install an aftermarket air conditioner–with a lifetime warranty–for the grand sum of $326.
Obviously, they weren’t counting on someone keeping a car for more than a few years, but over the next 32 years, he got several free refrigerant recharges, a couple of free idler pulley replacements, and four replacement compressors!
Jokingly, he wonders if he was responsible for Wards going out of business.