That's not true, Dell and others are still offering XP downgrades.
http://www.dell.com/content/products/features.aspx/winxp_inspndt?c=us&cs=19&l=en&s=dhs&redirect=2
http://www.dell.com/content/topics/.../business/xp_smb?c=us&cs=04&l=en&s=bsd&~tab=2
http://arstechnica.com/news.ars/pos...o-offer-windows-xp-beyond-june-30-cutoff.html
You're talking about market capitalization, not stock price. But who really cares about market cap when the company has been a terrible investment for a decade?
And a company that has 90% market share isn't even double the market cap of the company with about 5-7%? That's pathetic.
They're only offering OEM downgrades until the end of the calendar year. Then it's Vista or nothing...that isn't to say they won't allow companies [or consumer] folks to re-install XP. But the likes of DELL, etc. will begin to build new PC's and develop drivers solely for Vista at some point.
Let's put it this way; this time next year companies better have a strong migration plan to Vista or some other system [Citrix, or VM perhaps?]...