I give the example I mentioned. People local to me swapping out their model 3's for BYD. Maybe they just got to their end of their lease cycle and wanted to try something different, but I cannot believe they would have willingly chosen a significantly lower quality car (knowing some of them). And I believe the cost difference is marginal but the overall package just a bit better.
And you know people, they'll swap out anything for just a marginal saving. Doesn't have to be significant unless there's some network effects. And there really isn't with cars.
Anyway, I'm just yapping, but think the used Tesla market is going to get even more swamped than it already is. Not a bad thing because previously people looking for low cost cars were buying diesels - so I'm hopeful that'll transition to low cost EV's now ... but the game is up for Tesla automotive, but we've known that for some time.