[eli]

Not only did I never upgrade past 3, but I just got a new MBA and decided to go with VirtualBox (which works fine, though I have a sneaking suspicion that is uses more CPU and is less energy efficient)

It appears that you can upgrade from 3 or 4 to 5 Pro for $49.99. As far as I can tell, I don't need any of the Pro features. And that's the same price as buying the non-pro version outright. So not much of a deal.

[slantyyz]

I had to upgrade because of Mountain Lion (I have Fusion 3) but the only silver lining is that at least Digital River didn't tack on their sleazy "emergency download service" (completely unnecessary) on the shopping cart like they normally do.