Now I've only been in the hobby a little over a year so maybe some of you old dogs could chip in and talk about the good olde days.
The rare ones from the "good olde days" either became common, because people like them, or almost obsolete, because people didn't like them.

All in all, there are ebbs and flows to what is common, what is rare, and what is sought after.
For anyone disappointed that there aren't more uncommon or rare species (Malawians in particular) at auctions, look in the mirror. The quality of what's there results from what's chosen by those who bring fish in the first place.
