Hello Mack2, well i do keep them. But the main problem is that there aren´t many people keep them in compare to other rare gecko species.
I think a very few are in the USA, more would be kept in Germany or Europe in gernerally, but not all of the people are publishing anything that they do keep them.
so it will be not that easy to find out who keeps them, otherwise to get any of them avaible will also not be easy. if you know one who is breeding them, then getting to put on a waiting list for years is normal by that species. remember a breeding pair gets only ( if all goes well ) 1 or 2 live beared babies in between 8 - 9 months. and the most people who may keep them, hold the first ones back, so it needs a long time, until anyone will offer some.
maybe after your post here for that reason, some other are replying here to that who also keep naultinus elegans.
good luck.
regards stefan