"The hardware expense and the amount of bandwidth required are both too high for practical implementation.
"There’s also the fact that you aren’t removing any component out of the support stream for currently accepted VDI compared to that of traditional desktop computers. You still have hardware at the user’s desk. You still have a fat desktop operating system sitting on a virtual machine instead of on your physical one. You still have to patch and protect all of those virtual desktops with antivirus software and antispyware software. And, unless you’re willing to lay out the money for a high-priced network infrastructure and very high-end virtual host server systems, your performance will compare favorably with stagnant pond scum on a calm day."
