I am with the no camp. I loved pace bikes, I had an Rc200 F6, F8 and a Rc300, the last 19" ever made. The best being the F8, the rc300 was a little disappointing, I found lost a little bit of spark that the Rc200's had.
But think modern bikes out perform them, my Orange Elite (new one,2011 edition) is in the same camp, an xc race bike, but is so, so much better than any of my paces. (It's like a cross between a Klein and a pace but with a modern twist.) It feels both more stable but also nipper and less creaky!
I might be interested in a modern xc race bike from pace in square tubing and made in the uk but then again that sort of what the Rc300 was and wouldn't rush out to get one of those again, especially as it snapped after about three years.