I have the Luger that my mother's uncle took off a dead officer in Italy. It's not that fun to shoot, but it's got all matching parts and has some collector value. It's even got some blood on one of the stocks. The 22 would be awesome to shoot, but if the Luger might even have some value, I'd probably go for it. If it's all mismatched and is only to shoot the 22 might be better. That's is quite a choice.