The only Richartz in my collection are older German-made tools, from the 1980s or older. Prior to this new company, that was primarily what they made--inexpensive pocketknives. I had a Pierre Cardin-branded knife, and it was stupidly unsafe. The blades recessed into the handles, and when using it it was so symmetrical, you couldn't tell the sharp edge from the straight edge until it was too late.
If it weren't for the fact they aren't widely sold in the US, I could see myself buying the entire Karl line for the collection. Like Funko, but cheaper and actually useful for something. Key Tool (both Snack and Cut) t looks handy.
I've been trying to get a Partner for years. They tend to sell for quite a bit here in the US.