Gen1 airpods basically suck after 1.5 years in because they only hold 30 min of call battery life. I'd be willing to bet thats 50% of the adoption.
> For about a decade everyone was pretty happy with the white iPod headphones that came in the box.
Which have been made obsolete by smartphone manufacturers (namely Apple) by eliminating the headphone jack.
> AirPods came in and added a whole convenience layer on top which seems to be driving people to buy in droves
1) They're wireless (and dont have the unfashionable "wire around the neck thing") and 2) see point about headphone jack above.