Seems like the common consensus is $10 scrapyard NIC plus Wi-Fi bridge. TBH, I was always surprised that the consumer Wi-Fi bridge was never a popular thing. You'd think it would sell more easily to customers, because most PCs have had Ethernet on board since like 2000, and even adding a USB dongle means having to bring new drivers in.
Now going full off tangent-- what happened to old wireless client hardware? If you go into any thrift shop, you're going to see a bunch of old 802.11g or n routers, but you usually don't see the adapters. I could see internal ones being scrapped with the PCs they were in, but I'd expect people who bought a new-spec router and matching adapter would replace them together.
