> First, with range decreasing, number of charge cycles per mile, and therefore rate of wear, will increase.

By 10% over 10 years, assuming the worst case of nothing but ultra-fast charging. This seems minor.

Old cheaper cars could be 10% less convenient to use for very long trips. This should not shock anyone.

Rather than an expensive battery swap, sell it on at a lower price to someone who doesn't need 100% range.

That's a theoretical / marketing number. In real life I am yet to see meet an EV owner who reports >80% of range after 5 years / 100 000 km of mostly-at-home charging. I see those on internet forums, but on internet forums, anyone can write anything, so I do not take those reports too seriously.

From my personal family anecdotes: my mothers' 4 year old Hyundai Ioniq 5 had complete battery failure. Thankfully under warranty. And my fathers' 5 year old Audi e-tron 50 already has <80% range remaining, with very rare fast charging.

Western car manufactures scamming their customer should not be what you look at for costs. Batteries pack costs have gone from $130-150/kwh in 2023 $80-90/kwh in 2026. Price for a pack will likely be under $50/kwh in another 3-4 years. Ie battery packs are becoming competitive with engines already and will be cheaper by 30-40% ie replacing a battery will be cheaper than replacing an engine/

No car manufacturer actually sells battery packs for $80-90/kWh or anywhere near that. That's what it costs THEM, not service customers.