Is security really Vista's biggest selling point?

Give a Softie only one minute to make a pitch for upgrading to Windows Vista, and s/he most likely would focus on the new and improved security in the product.

But is Vista's security really so much better than that provided by Windows XP Service Pack 2? The short answer to that question, according to the Associated Press, is not a whole heck of a lot.

Why isn't Vista's security as much of a selling point as expected? According to the AP's research:

It's "partly because of security progress that Microsoft already had made in its last operating system, Windows XP. Also because a complex product like Vista is bound to have holes yet to be discovered. And mainly because of the rapidly changing nature of online threats.

"Sure, Microsoft appears to have fixed the glitches that used to make it easy for viruses, worms and other problems to wreck PCs. But other avenues for attack are always evolving."

Speaking of Vista and security, News.com points out that Microsoft also may not have an easy time convincing banks, commerce sites and other partners to block PCs from accessing their online properties if those PCs are designated by Vista's Windows Security Center as being not adequately protected.

Now I'm curious. Do any of you business users who are considering Vista upgrades still think security is the most compelling reason for doing so? If not, what other Vista features do you consider useful and important enough to move to Vista?