What does "Satisfaction Guaranteed" mean? It means that if you don't like it, you get your money back. It means that if the postal service mangles your print, you get another copy of the print. It means that if Epson was wrong and atmospheric pollution somehow causes your print to fade in less than 50 years, you get another copy of the print.
It means I'm proud of my work, and I stand by it.
There's only one catch: that's my lifetime. If you die before I do, then you can haunt me from beyond the grave. But if I die before you do, then my guarantee expires when I do.