it took me a long time to decide to go on a CRAB, as I was thinking along the same lines as yourself, why go on something that sounded so severe and may not work.
The thing is though, you are far more likely to stay the way you are now, and not get additional symptoms and damage if you start a CRAB. I wish I had started one sooner, but hindsight is a wonderful thing.
I am on Copaxone, it's great, I have done really well on it and the side effects for me have been minimal. Just some "indenting" on my legs but I think that's a pretty small price to pay for keeping well.
Good luck with whatever you decide.