NA would probably be a 400 plus NES CIB and sealed lot for $5000. I kept about 300 boxes I needed, upgraded lots of other stuff and sold the extras off for about $10K in profit.
I’ve found tons of nice deals on eBay but nothing sticks out, maybe a Super Nintendo superbrite sign for $100?
In the wild, I would say it was a deal where I met a guy that had some magazines for sale, NIntendo Power and Game Informers mostly. Asked him if he had games for sale and bought everything including minty cibs, carts, manuals, guides and the original magazines for $300. otherwise a free Aerofighters cart was cool too on another trip.