If enough people were prepared to pay double to buy something with a 25 year warranty, I'm sure companies would step up and make those products. People don't want to pay enough for it though.
Paying more now for a longer lasting product depends on how much you discount the future (ie effectively your internal interest rate), and on how likely you'll think that you'll even want to use that gadged in the future. Eg the NES was probably ridiculously over-engineered for most people, since realistically they'd only need to not fall apart until you buy a SNES or Playstation.