It's still marginally more wasteful because there's more supply in the used market and with enough of the same decision in aggregate, the used market would go f

It's still marginally more wasteful because there's more supply in the used market and with enough of the same decision in aggregate, the used market would go from using phones until they're 5 years old to using them until they're 4 years old, because that's what people could afford with $100. Like if there's so much supply in used market because most people buy new, then there's a lot more people who don't prioritize reselling their used item at all because it's only worth $20 (at the extreme)