I was just about to order, and then notice this:
Note: The Adobe Photoshop Camera Raw plug-in will be included as part of a future version of Adobe Photoshop. Adobe does not promise the long-term availability of this plug-in for standalone purchase. Your purchase of the plug-in does not entitle you to discounts on future upgrades of Photoshop.
... Will a future upgrade be a better deal... (even @ twice the cost of the plug-in)?