...
However, the overhead costs of the VPC (e.g. NAT Gateway costs, VPC Flow Log costs) are not charged to or cost-shared by Cornell AWS accounts.
Will I save money by using the Shared VPC offering?
Probably. If you switch to a Shared VPC offering, you can probably retire NAT Gateways that you currently run to support private subnets in your own VPC(s). Similarly, you will save the costs of VPC Flow Logs if you can stop using your own VPC(s).
Limitations and Quotes
Are there quotas or limits associated with the Shared VPC?
...