I was an early adopter, getting the identical 27" Planar monitor shown in the CW videos from last year. I have no regrets. Based on the OP, W8 should definitely be a major upgrade from W7. In addition to multi-point, I
can control the faders and all other controls in CV (and multiple ones simultaneously at that). However, for fine adjustments, I still use a mouse (or physical controller).
I agree that plugins are where the touchscreen really shines. Having used/owned many controllers, including CW, Novation, Axiom, Mackie, among others, nothing beats touch. No matter how you cut it, no physical controller - at least in my experience - can control all plugins all the time. Automation is also a lot of fun using touch.
One notable exception: Waves. For whatever reason, touch does not work with their plugs! Still, though I do own many Waves plugs, I also own many others (including CW, obviously, as well as UAD, NI, IKM, and others I can't recall right now... Actually, come to think of it, touch might not work with x86 plugs, I don't remember as I use them so rarely now.
I also find it extremely helpful in TV and PRV for zooming in and out, as well as scrolling left and right. It would, however, be nice to somehow select notes/regions using touch, though that seems impossible if the scrolling/zooming remained.
I'm in the process of moving my studio back home now, and look forward to experimenting with multiple monitors (touch and non-touch), as described here by others. I'll also see how V-Control can add to the mix.
Anyhow, I hope CW continues in this direction, implementing additional touch capabilities (if possible).