From what I've heard the hybrid powertrains are way more complex and prone to extra problems on top of ICE problems. But it's a testament to Toyota's engineering that the Prius makes it seem that this isn't the case.

In any case, on the much higher bar of running a car into the ground I think the Prius would get priced out on repairs for the last 20% of the run time. You've got both the regular battery and the hybrid battery, the regenerative braking system, and probably a lot more little dingles and dangles that would cause arguments with a spouse if you dug your heels in and kept paying for them just to run the car all the way to the finish line.

With the Corolla you just might just have to decide when you've had enough of driving the damned thing.