You're right, I shouldn't have called it stupid, and I apologize for that.
That aside, hearing "such unanimous high opinion from beta testers" should tell you something. This version of Windows is so much more than a cleanup of Vista. In Vista, much appeared to have been changed simply for the sake of change, and a lot of it didn't make much sense, or really offer any new benefit. Although Windows 7 is not perfect, you can definitely see changes that work towards a goal of truly making the OS more user-friendly. There are LOTS of new features in it. I don't know if I'd go so far as to say they're innovations, but they are definitely much-needed and long-overdue features that are a welcome sight for sore eyes.
The new hardware/peripheral management features alone almost make it worth the upgrade. They are really striving to develop a true plug-n-play environment, where you never have to worry about installing special software for a peripheral. You just plug it in, and it works. Linking bluetooth devices used to be very tedious, but Windows 7 found my generic bluetooth transceiver automatically, and the add hardware wizard treated my bluetooth devices just like any other peripheral, making for an effortless installation that didn't require any clumsy third-party software. And the interface for installing, configuring, and troubleshooting all your hardware and peripherals is very clean and user-friendly (unlike the Device Manager).
Also, multimedia is a big focus with the new Windows Media Player and Media Center apps better than ever. Plus, support for many newer audio/video codecs is now built-in, including the H.264 video codec, which means you typically won't have to go searching for codecs to install, which can be a nightmare for some typical users who don't even know what a codec is. This is definitely the version of Windows you want for a home theater PC.
So, there is MUCH more to Windows 7 than just cheap tricks to try and win back users who got disgusted with Vista. With Vista behind them, they've had over 3 years to really take it to a new level. Honestly, I was probably as skeptical as you were until the first time I installed the beta, at which point I got blown away by how good it was already. Please do try it. I think you will be pleasantly surprised. =)