So, I'm finally getting around to deciding about cord blood banking. Here's my advice: don't wait too long!
I'm leaning toward to the public (free, donation) option, but it might be too late for that. Unless you are delivering at specific hospitals that are affiliated with a public bank, you have to sign up between weeks 28 and 34 of pregnancy.
I didn't know about the public option until recently, so I hadn't looked into it. Private banking seems very unlikely to result in any medical benefit, so I'm thinking maybe we won't do it.