The answer depends on who you ask, really. People who have witnessed, say, the 60s and 70s will tell you that, indeed, there was a time when household items used to work for 30 years and more. Remember the time when the phone you got from your phone company at signing the contract* would be the only one you'd need for, oh, 20 years? Yeah, those were the days.
Unfortunately, since then the industries discovered that they will make more profit when their expensive stuff has a shelf-life of about 5 years (at a 3-years guarantee period, max), so if your fridge works for 10 years, you are one lucky person!
I blame Bill Gates and Nokia.
*rofl, no idea if that was the case in the US and Canada, too.