So instead of tiny, expensive headphones last 18-24 months, you had an even more expensive cassette player which might last 5 years, with headphones that lasted

So instead of tiny, expensive headphones last 18-24 months, you had an even more expensive cassette player which might last 5 years, with headphones that lasted less than a year, and expensive bulky rechargeable battery packs which lasted about 6 months if you were lucky. How is this better than a set of headphones which last 18+ months? Just the NiCd battery packs were something like 20 times bulkier than the AirPods and lasted less than a third the time with careful use. Normal replacement cycle on those battery packs would be more expensive over 2 years than my AirPods, particularly if you consider inflation.