I just checked the site, it says the subscription includes a new detection module every three years. So at least some new gear is included.

Subscription for a product like this definitely feel very shady. But at least you can just straight up buy it. They say the subscription is intended for people who can't afford the full price out of pocket.

They are reusable, they use replaceable argon cannisters, those cannisters cost 130bucks a pop though.

My t9p of mid-range baby car seats that I BOUGHT (ie. No subscription) come with a replacement agreement that each accident the seat is involved in above a certain threshold, they will replace the car seat for free as they are not safe to operate again after a crash -would need to check the manual in the car for deets, obviously not for a fender bender.

As many times as accidents could happen in the life time of the car seat, probably 8 years or so. For free. Which I think it's smart as it gives them great pr in general, and it helps keeping their brand out of the news in case of a damaged item gets involved in a second crash and someone gets hurt.

I am sure they factored the cost of replacements into the seat price based on statistics, to me it tells you don't need to be a soulless piece of shit to make a good and reliable business model without being a dick.