I do grow some other Pings, including South American Pings (which are just so unique), a few Mexican Pings, Cuban Pinguicula, and a few of the North American warm-temperates (which have been giving me trouble recently, and our unusually cold winter killed off a lot). I grow whatever Mexican Pings people offer me, as for seeking out Mexican Pings, my interest is more pointed towards South American, Cuban Pings, European Pings, and any sort of cold temperate from non-European origins as well. I actively seek out South American and Cuban Pings, but sources for them are scarce. They are some truly unique pings, and have exceptionally beautiful foliage.
In regards to the NA warm temperates, I have backed off on these recently because of climate reasons. I have decided to not apply as much focus to the NA warm temperates as I once did, since I realize that I need some sort of humidity protection if we get another unusually cold winter, as our freezes are often accompanied by strong freezing winds that penetrate through cracks in my garage. Some I received recently also had trouble settling in, perhaps the best time to buy them bare-root is summer when they grow much faster. I love the subtly of these Pings as well, but they just don't quite match my climate so easily as cold temperates do, so as of recently I've sought out more cold temperates. It seems that it does get cool enough in my European warm temperates to slow down for the winter in my tuberous Drosera area, I may try warm temperate US pings in this area next winter, especially some that are from more southerly locations.