Yeah, I’ve done a few orders on AliExpress. They were for some LoRaWAN devices (think Arduino with built in GPS, WiFi, radio transceiver). Largest qty of a single item was 10. Relatively fast delivery on a slow boat from China. I think most took 3-4 weeks, which is fine for less than $10 in shipping from China. Today, I just paid the USPS $4.50 to ship a 2 ounce padded envelope across town.
Be aware of the long shipping times and don’t expect the world. If you buy an iPad for $20 on AliExpress, you’re not getting an iPad. You’re getting something that is definitely not an iPad.