It isn't the essentials kit I'm looking at, rather the Ent+ Acceleration Kit which comes with vCenter Server Standard and 6 CPU licenses for Ent+.
If we have a medium sized company with two datacenters then buying two of these saves them about 50% of the cost of buying all individual components outright. I can populate each site with 6 x HP DL380s with a single E-2690 Intel core and 128GB RAM. Each server will cost about $17k and then can be upgraded in a few years with a second core, 128GB RAM and an extra ESXi Ent+ CPU license for another $17k (probably less after 2 years etc).
I'm looking to build an easily upgradable solution and using the Acceleration Kits like this makes sense as long as it is valid legally.
Cheers,
Paul