I think that cutteri are pretty popular, at least among cichlid hobbyists. I don't think that they're being commercially farmed the way that convicts, JDs, firemouths, oscars, etc. are...so that's why Petsmart and other chains don't carry them. I bring quite a few to local stores and sell quite a few to hobbyists.
Also, cutteri pretty recently understood as "different" than spliurum. The most important thing is to recognize that all cutteri and splirum aren't the "same" - basically each river system has its own version (kind of like different parts of lake Malawi have different peacocks).
Here's a thread about my F1 "Rio Jutiapa" pair from Ken Davis (fishfarm).
http://www.monsterfishkeepers.com/forums/showthread.php?t=159012&highlight=cutteri+jutiapa
Matt
Also, cutteri pretty recently understood as "different" than spliurum. The most important thing is to recognize that all cutteri and splirum aren't the "same" - basically each river system has its own version (kind of like different parts of lake Malawi have different peacocks).
Here's a thread about my F1 "Rio Jutiapa" pair from Ken Davis (fishfarm).
http://www.monsterfishkeepers.com/forums/showthread.php?t=159012&highlight=cutteri+jutiapa
Matt
I am going to check with the farm that mine came from to see if I can get the origin on them, I got them as mature fish 

