I opted to store with a private cord blood bank. paid 9.8k (can use CDA to pay partial) for 21 years of storage. I chose to store cord blood, cord lining and cord tissue.
I personally chose to store it because I feel like it's a safety net for my LO. If you can afford it and you would like to have a little back up plan, you can think of it like a little insurance for your LO in case you ever need it.