you have hit it on the head Stefan,even from a dealer level putting a proven warranty on a used vehicle has become a costly exercise but this has been brought about by the increased burn rate on warranty claims,there doesnt seem to be a week goes by that we dont have an impreza sitting with its throat cut,but never have this problem with legacys or foresters partly due to them not being altered and not being driven within an inch of there lifes!
at the end of the day its an insurance,'why do we bother with car insurance'in the event of an accident our car will be repaired at no cost or we will get back its market value if its written off!DO WE ALL HAVE IT,i hope so,but in reflection what a waste of money each year if you do not claim.Its not a requirement to purchase a used car warranty but it is offered for the consumers pease of mind,you dont need to buy it if you dont want it,but i've seen the bills if your engine or gearbox goes pop and this would make me wish i had a warranty.
This is just my view from inside looking out.
£510 an absolute bargain,if you have to use it and your bill is £3500.
Gav