I guess it's like data backups: you don't actually know if you have a good deal until you need to retrieve and use it.

If someone else is offering the same service cheaper, then you know it's not a good deal.

we send parents a stem cell certificate 1 month after birth. so you'd actually know that it's a good deal pretty immediately

For sure. We're 8 years * 85/mo for payments * 12 months per year for 20 years of storage. So much less than 18k