Steel does seem to be making a comeback in new production bikes. For people who are relatively new to cycling, it's a novelty. It's telling a good 30 year old frame will still make a great bike- I'm not so sure sometime in the future a 30 year old carbon frame will be desirable or even usable.
I've been looking at a couple of those new steel bikes, like the Raleigh International & Colnago Master. The look great, but I have a hard time with the $6000 prices!