yep its literally the reason why they do that

cause if someone has something and it lasts them for 10 years (for example) they are going to replace it much less than if it lasted them (for example) 2 years

by this i mean (my maths is not that good) but if i worked it out correctly, a company would make 5 times as much profit if they made their things go wrong after 2 years, rather than 10 years, cause replacing something every 2 years 10 divided by 2 equals 5

unless i cannot do maths for crap ?

its why i hated my dell laptop back in 2007 - that one decided it was going to break at juuuuuuust over a year old - juuuuuuust as it was out of warranty - so it costed a lot to get it fixed, it would of been cheaper to replace the laptop that year, instead of getting it fixed i got that one in June 2007, it broke in June 2008 and although it got fixed, it costed us more to fix the problem than buying a new one would of costed