A. entitlement to all firmware releases and cloud-managed security updates
You are only entitled to "current" supported releases. You can not deploy older releases. So I discount this option.
B. 24/7 phone and email support with lifetime warranty
The warranty only runs while you have a licence (and even then, not on all products). It is not lifetime.
C. advanced replacement service fulfilled within 8 hours pending regional availability
Advanced replacement is "next business day".
D. access to purchase EOS/EOL Cisco Meraki hardware at a discount E. extended refund window with a prorated restocking fee
You can not purchase EOS/EOL hardware.