I don't use AliExpress often but for the commodities you want to stock your workshop with, it's often cheaper per unit with cheap shipping so if you want to order a bunch of something it's usually the way to go. Pre-COVID, clone Arduino Nanos were like $2 each on eBay but now they're like $5 at minimum. On AliExpress you can still ocasionally get them cheaper. I needed a bunch of them for a project and had exhausted my pre-COVID stash so I got a bunch on AliExpress and they work fine. For the less common stuff I'd not waste the time and just get it from somewhere with faster shipping. eBay often has free shipping on stuff while Amazon needs a $35 minimum if you don't have Prime, though I do make use of the free Prime trials and stock up when I get the offer.