As bad as White Castle is, I grew up on it in Michigan and missed it in Texas (the frozen ones were not the same). Always got my fix when back home.
Even Krystal’s isn’t quite the same but will do in a pinch.
There was a White Castle in Lansing a few years ago. As much as I like those puny lil thangs, I never went to that one.
When I lived in Port Huron there were a couple of Powers burger joints that were essentially the same thing as White Castle. So similar, I later wondered if the Powers’ stores used to be White Castles.
WC has a somewhat unique way of cooking sliders. The patties are perforated and cook by steaming them atop onions. I’ve had the frozen and I thought they were good enough. I’ll buy them, still, if they’re on sale.