I've been surprised in the past, how plants can come back from what appears to be the end. Awesome, actually. I think sometimes the circumstance requires a cutting, because of root rot, or insects in the soil. But otherwise I agree with you, that it's worth a try to save the plant itself.
My husband has a running commentary with our daughter- "So how does an oak tree grow from an acorn?" Some things you just can't explain.
