The cost of Live Migration: Did VMware miss an opportunity?

VMware recently announced vSphere 4, the replacement for ESX 3.5. When I read that new editions had been released for small business I thought VMware would include live migration (VMotion) functionality to compete with Citrix XenServer which includes live migration (XenMotion) for free. But the VMware vSphere editions comparison table shows VMotion availitility with Advanced, Enterprise and Enterprise Plus only. This leaves the small business Essentials, Essentials Plus and Standard editions without the ability to perform live migrations with VMotion. So what is the cost for a small business to purchase vSphere Advanced? U.S suggested list pricing is US$2245 per processor. So a dual processor, two server vSphere farm will be $8980 (I’ll ignore vCenter and Service and Support costs). I think VMware missed the boat