I bought the
Kino version, which was of the 1920's release. It's a horror movie, but as you'd expect it's not very scary today. The sets are amazing though, with one Amazon reviewer nailing it perfectly by saying they are Tim Burton-esque. Also has some very nice special effects for 1920 and is a good story to boot, with a classic final scene.
But yeah, it's easy to get carried away and start blowing wads of cash on movies like these. After I saw Der Golem I bought quite a few releases from the 20s and 30s which cost me some cash, but Der Golem stands as my favourite, even over Metropolis. But I'm probably alone in thinking that.