$60 for 4gb for a board??
You can get a whole computer with a disk, 16gb ram a cooler, a case, and a power supply for not much more.
Edit: lol at the downvotes. Look for mini pcs on amazon. Dreamquest 16gb can be had for roughly usd$170. Let alone going on eBay and getting something second hand.
Edit 2: here’s a USD$114 computer with 12gb of ram from Ali express