[Lasher]

"Why buy something when you can buy more somethings tomorrow":

In anything technology related, this has already been true for a couple of decades now. I can buy a phone, TV, computer, tablet etc today, or I can wait a year and get much more for the same amount of money.

People still buy all of those things because, as others have posted, you reach a point where you just have to or want to upgrade because the alternative is you spend years on old technology endlessly waiting for "just the right time to buy".