I will almost always choose to buy a product if offered at a cheaper price if I can do so by declining longer warranties, so, no, it's not "always a benefit". It's not a fairy tale. Someone has to pay for things.
You’re just being taken advantage of. At every step and every service level they are fleecing you, because they can. Think the non-warranty option saves you money? It may on the margin but your easily parted money subsidizes those that do get the warranty. And they still get screwed for the profit. You can’t win in a rigged system