Gasteria armstrongii

We're not really collectors of Gasterias, but because of their kinship with haworthias and aloes, we do have a few. We like them. We just don't have enough room. But they're so easy; what's not to like?

We bought this many years ago at a California nursery somewhere. We can't remember the name or the location. It's very frustrating. Are we the only ones this happens to?