I would recommend you also look into delayed cord clamping. When I was doing my research, I found that it appears that delayed cord clamping had more potential to provide benefit to my child over cord blood banking. You can't do both.
Do you think it is better for your child to get all that blood in their system with the stem cells OR to just bank it?
Considering how rare some of the illnesses are, it makes more sense to delay the cord clamping so the child can get that cord blood pumped in their system and let their young bodies use it now rather than save it for later.
Of course everything goes out the window if something bad happens. We decided on delayed cord clamping. Unfortunately, our baby went into distress. Heartbeat kept dropping during every contraction. Got so low that they had to do an emergency c-section. They tried floating the cord out. They knew what the problem was but couldn't get it fixed so we waited as long as we could.
Ended up being that my son was facing the wrong way and he had the cord wrapped around his neck. Everything turned out ok but we didn't get the delayed cord clamping or the cord blood banked.
You just have to roll with the punches sometimes. AND my son ended up with a bad case of jaundice and had to be in a biliblanket for a week.