I just checked out Wolfgames. Seems like he/they/whoever is trying to charge TG16 prices for PC Engine games. $19 for Motoroader seems pretty steep. 40% off puts his games at about the right price, IMHO.
I've seen Hit Japan's auctions on eBay, and that seems like a good way to pick up some cheap commons.
Maybe I'm wrong, but I feel like I generally don't see many games for sale here. The FS/FT forums are fairly dead, and filled mostly with WTB threads...
Thanks for the responses so far.
Chris