I agree, however "just put your device on eBay" is really too much work for a lot of people, particular Apple users (sorry, but it's true). I sell my old stuff on Ebay a fair amount, and it really isn't that easy if you want to be successful at it: you have to take photos, look up similar auctions/items to see what it's worth, maybe copy descriptive content from other sellers, possibly edit your photos (I think eBay rejects ones from my phone because they're too large, so I have to shrink them, and so I crop them in the proceess), weigh the item, etc. It's really kind of a PITA. I haven't tried the eBay mobile app so maybe that's a bit easier.

yes, but there are some companies which would pick up the old stuff and sell it for you, taking a part of money received from sale. Maybe something like this will become even more popular. They can also employ handicaped ppl.

Yep, those are called consignment shops. I've never tried one, but it's not a bad idea in theory. But considering how little you might make from an Ebay sale for many things after Ebay and PayPal take their fees and then you pay for the usually-"free" shipping (with USPS rates already high and constantly rising, and UPS/Fedex rates even worse unless you're a big business), I do really wonder how profitable such a business would be.

There are various places to easily list and sell if you don't want to create a proper listing. Facebook, nextdoor, letItGo, and many more.

And for a phone, you are looking at $7 to ship it anywhere in the USPS and 15% fees. You will make out, much better than an apple trade in.

But then, if you want convenience, you will still make out better with something like gazelle or eBay's buyback program.

I do list stuff on Facebook Marketplace. You still have to create a "proper listing": you have to take photos, and you have to do some kind of write-up if you want to actually succeed in selling it and getting a decent price. Listings don't post themselves.

For a phone, yes, $7 or so will ship it anywhere in the US with a USPS Priority Mail small flat-rate box. But for anything larger, the costs go up; I was kinda talking about the general case of selling any of your stuff on Ebay.

I do agree you'll make out better than some trade-in program if your item is small and high-value and you're willing to put in a little bit of work to list it, take some photos, etc. But my point was that many people are too lazy to do this work, especially people who value convenience over saving money (which describes Apple users to a tee).