Where can I purchase decent stockings?

I’m searching for some high-quality stockings and wanted to know where is a good spot to find them. Plus, what’s your top pick for stocking material? I’ve heard that once you try genuine nylon stockings, it’s tough to go back. Do premium stocks really feel significantly better than the ones at regular stores? I currently own only budget pairs and am curious about everyone’s thoughts before dropping $50 to $75 on a good set.