Wet Spot is a great store, but not in my country...But as someone who is shopping for fishes for an aquarium i can hardly consider fishes that are not availalbe. I can fill a 400 gallon tank with variety of sa fishes but it is much harder to do that with west african fishes and it is not wise to mix west african with sa....
By the way wetspot has several species of Benitochromis for sale but describe them as hard water fishes which seems to conflict with west african river fishes.
Benitochromis are soft water species, so that's an error.
There are 2 or 3 specialty dealers I know of in the US who would have the 'good stuff'. Westies are about as hard to find as good Apistos or wild type angels, but agreed, it is a specialized taste. The diversity is there in nature, but not in aquarium stores.