None of the response options in the poll fit my situation. I'm using LR4, and will wait until my vendor of choice (Newegg.com) offers the program at a substantial discount (as they did with LR4). I can see the value in the new features, but none that I have read about are must-haves for me.
I won't buy into the subscription-based model for any software application unless / until it becomes the only option for a program I absolutely must have for my business. I tend to upgrade only after a new release has had time to stabilize, and frequently skip multiple major releases. (I didn't upgrade from Windows XP to7 until 2011, skipping Vista altogether, and am still using MS Office 2007 and QuickBooks 2008.)