If you only team on larger teams, or if you have a pocket Kin, you can skip rage without hurting too much. You will feel the pain of low damage though.
I don't like Rage, myself, but I have long since realized that SS is balanced around Rage. I've got a couple SS toons (and have even been playing them a bit the last couple days) but I generally don't play it much because the rage crash annoys me but no rage makes me feel gimped.