Is Windows 7 worth it? I've got 64 bit Vista and I'm wondering if the switch is worth the hassle of reinstalling everything or not. Unlike most people, I don't hate vista but if I can pick up some extra performance, I'm all for that.
I have limited experience with Vista as I moved directly from XP to Win7 64. From what I gather Win7 is more like a Vista Service Pack, ie. it's mainly tweaks here and there. I understand latest Vista revisions have made it quite capable and not as painfully locked down as the on-release version.
The main benefit Win7 has compared to Vista is that it does take fewer resources and has some improved features making it faster, updated Superfetch probably being the most significant. This is largely made moot if you have your OS on an SSD, though. How much those tweaks improve performance is another matter - I would recommend some prudent googling of real-life benchmarks.
I wouldn't expect much to gain from going to Win7 from Vista, but I'm sure you can find plenty of MS marketing material saying otherwise
FWIW, I ran RC2 for almost a year and was already fond of it, and recently installed Win7 64 Ultimate and couldn't be happier. It's a solid, stable and mature OS, and it gets out of the way and let's me do my thing.