[ Even though the seller looks like they already had a handful dealing with the red-head, Riley continues to stick around. He doesn't have much need for gemstones or other such objects but does want to see how this plays out.

Which is why he shifts just a little closer to get a look at the newly revealed item. ]

Honestly, they shouldn't be taking advantage of the situation simply because there's been a massive influx of new people to this world. You'd get a lot better and more steady business if you stopped trying to cheat and trick people.

[ Glancing over at Kurama. "See what looks like" - meaning he's not really a teenager? ]

I don't think it's just that, in this case. More that they see a lot of new and unknowledgeable people to their world and think they can earn some easy money.