I stopped by HSC yesterday. It was packed. They had a spread of food, and a book to write comments in.
In 2018 Weird Stuff Warehouse closed though I was never much of a fan of that store.
I think that some of the items for sale at HSC had been there for several decades. I used to go there when they were on Evelyn, then they moved to Ryder Street, and finally to Corvin.