There are dozens of us! The activated ability discount has a huge impact and enables some of the most fun things you can do here. Cycling and other adjacent effects creates pretty exciting games where players get to turbo through a lot of quick actions. Not really knowing how your hand is going to play out as you tear through your deck is a fun experience. At least every once in a while. It really dramatically changes a lot of the artifacts and some other mana sinks.

It's also a bit risky! Plenty of cards suddenly go infinite with themselves.