I won't say your "wrong" per say but it is important to consider other vantage points.
In your case, you clearly fancied all the added features that come with the PMP so the $10-17 was a steal. Personally, the only feature I would care for is the
battery prevention. I don't use
parking mode in any dash cam because it often results in false positives depending on how sensitive the
motion sensor is. Also, 90% of the time, the dash cam will not capture the incident.
For example, if your vehicle was parked and someone hit your car and took off within 3-5secs, by the time the dash cam turns on it wouldn't have capture anything useful.
Most ppl get these "dumb" hardwire kits because they want the dash cam to come on/off with the
ACC power. I only integrated a toggle switch so I could make my own "parking mode" function and know that if my vehicle was damaged while I was away, my dash cam would mostly have seen the
complete incident.
Thus, to them the PMP wouldn't be needed because their dash cam comes on/off with the engine and so
$10-17 extra would be a waste of money.
The YouTuber -- Techmoan -- talks about the limitation of parking mode in this video... Start
@8:20 in the video
Thnx!