Do you need the latest router, or just "a" router? I usually get mine for like $10 at Goodwill. They're a couple years old when I get them, but they work fine and I don't need anything fancy.
I’m not quite sure, but I think the majority of the devices in that price range, if not all, fall into that category, being made with 4MB flash memory, and 32MB RAM. OpenWRT can hardly fit into that, it’s only possible with a custom image and making compromises