Bring your wallet
It all sounds really appealing and I'd love to give it a try, but the minimum buy-in just to test a couple of VMs is $1,000/mo., and that's for a very small Virtual Private Cloud offering. If I want dedicated, and I do if I have any hope of pleasing the auditors, then multiply that by 9x.
I just took a quick look and to replace my existing infrastructure with vCloud Air I'd need at least 2x Dedicated Cloud instances - nearly $220,000 per year, NOT including backups. My current costs including multiple backups and a fully replicated environment in two DCs are 1/3 what it would cost me in Air. I just don't see how Air makes financial sense when you really start comparing costs.
Amen to giving up building crap and spending time solving business problems instead, but who can afford it?