Jeff Rapps and AquariumPAEX both had true wild A. Rivulatus available to them a few years back..
They were collected in Peru, while many of the other variants come from other locales.. The collector, which harvested them out of a very strange area, realized how profitable they were and inflated the prices, I believe he struck an exclusive deal with a major exporter who works with Asia primarily.
There is alot of confusion about all of it, and it seems like everyone has their own opinions..
We had 4 of them.. 1 jumped out on the floor, 1 was sold on aquabid for $5 because no one realized what it was or believed us, 1 was sold to a local gal who never was heard from again, and the other was eaten by a carapo knife.
After that, they become near impossible to acquire.. Rapps wanted them from the same collector, and was going to import from AquariumPAEX. However, the collector suddenly dropped contacts with PAEX, but the fish still seem to find their way to Rapps. Those shifty peruvians at work again.
Maybe someday, some of these GT 'experts' will collaborate and get their story straight.