I think that it is harder to find. However, there are usually a lot of "getting out of the hobby" posts on local forums to any given area. That's where I got mine last year for pennies on the dollar for what I'd have had to pay from an aquarium site. Even if you live in a remote area, chances are that there is some somewhat major metropolis within a day or less of driving. I'd recommend you look up whatever city or town that is and look through craigslist or letgo (or whatever app). There are always tons of full saltwater setups going for cheap (I guess thank work moves and divorces for that???). You can also usually get really cheap livestock, salt, test kits, additives, and etc. Obviously, those things come with challenges like possible pest infestations, but if you really want pukani, it's still out there if you look for it.