Re: I have a bridge to sell you....
Jay from VCE here... oh hai!
Actually, with a Vblock you can use any of VCE's management & orchestration from partners: BMC CLM, CA PCA, etc. etc. as well as the stacks from EMC, Cisco, and VMware i.e. ITO, CIAC, vCD, etc. etc.
Also, you can't just "run any tech combo you want" because a Vblock is a product that was pre-engineered, pre-validated, and pre-tested both physically and logically.
Lastly, the "application level integration" and "advantages" when using a Vblock are why customers choose Vblock in the first place.