You are not counting the free 36k/3 years general and the free 60k/5 years power train warranties as part of you 120k/8 years Honda Care. The included free warranties time/miles need to be subtracted from Honda Car to compute the time/miles extension you are really paying for.
Fair point. So, it's a 5-year, 84k extension, or $16/month. Or, you make it back on any component failure. We agree, though, everyone's experience is different. So far, mine has shown it to be worth it. On top of that, I value a fixed cost at a known time over the opposite; it sounds like you can afford (or otherwise prefer) the opposite.
Your 1 year Navi screen failure was covered by the free 36k/3 years warranty which came with the car. So the money spent on that Honda Care was for nothing. (Unless you ran out of gas or needed a jump start or something like that)
You did not say if the one with the blowout plug was over 60k/5 years covered by Honda's free power train warranty. Maybe you made out by the freak blowout if it happened after that. But this freak thing is very rare.
Both cars were bought CPO, so no initial "free" warranty, but neither issue would have occurred under factory warranty. Navi was 5yr/70k, plug was 6yr/73k. The only added "cost" was buying certified from dealer, but I got screaming deals on them, which was again, worth it to me.
Slightly off topic:
I always use Pennzoil because I like the oil. I just found out they have a free, for using their oil. Not sure if your blow out plug is covered and it may take more hoops to jump through to collect. Both Pennzoil and Honda Care require proof of all manufacture's maintenance is done. Many people may not have that proof no matter which or both warranties they have. Some dealears may not even ask for the proof.
I use and like PZ Platinum, but a quick check of the T&C:
What Engine Parts Are Covered (“Listed Engine Parts”):
Pistons & Piston Rings
Oil Pump & Timing Chains
Crankshaft and Bearings
Rocker Arms and Pivots
Cam Shaft and Bearings
Valve Stems and Guides
Wrist Pins and Bushings
Cylinder Lining or Bore
Distributor Drive Gear
Timing Gears or Sprockets
Maybe they would have helped out with the short block, but my guess is that since it started with the spark plug, they'd back out. Regardless:
ANY CLAIM IS LIMITED TO $5,000.00, OR THE ACTUAL CASH VALUE OF THE ELIGIBLE VEHICLE, WHICHEVER IS LESS.YOUR REIMBURSEMENT UNDER THIS PROGRAM WILL NEVER BE MORE THAN QUALIFIED REPAIR EXPENSES. YOU MAY ONLY HAVE ONE (1) CLAIM PER ELIGIBLE VEHICLE UNDER THE PENNZOIL LUBRICATION LIMITED WARRANTY.
They ripped the head off twice and replaced the short block. I don't know the total retail cost, but I bet flirting with that 5k line would have been mighty easy.