OP’s original question specifically mentioned the engine wear from frequent start-stop. I’ve wondered about this as well. We all mostly dislike AS/S. The hybrids are doing it constantly. In fords, bmws, Audis, and others, we look at the plastic chain guides and then snap are heads over to stare at the AS/S button, while the hybrids cycle the engine 20 times on the way to buy milk.
As I ponder the pursuit of the perfect 2015 RX-h, it’s a good question.
The only thought I have to the OP’s concern here is, “data.” I do not recall a single post on this forum about shredded timing guides in a Prius. Therefore, engine would not be my worry.
Complex brakes (one Rx-h I looked at failed the test drive because the brake system made strange noises in transition), battery life (if buying at my mileage, 80k+), and complexity are probably increasing factors. Also, drive cycle - if OP does a lot of highway, benefits are diminished. If OP is couriering in a city, hybrid will have quicker returns.
I’ll echo this - rav4-h drives wonderfully. It’s a great “lawn dart.” Point and go, incredible launch torque. Respectable on the road. No, it won’t astound you with 0-60 but it does give a significant sense of control for precision merging and vehicle control.
I’d really like to pick up a hybrid as a DD. Keep looking for the right one (used). Toyota is the only one I’ll consider. And again, the timing chain on that 4cyl looks kinda like an RC car, but the data does not have the engines suffering here.