In defence of those that put the xmas lights up early, I'd like to point out that in cold weather climates its' much easier to do this in the more mild weeks of early november. Around here, the cold winter winds (and occasional light dusting of snow) isn't unusual on T-day weekend, and it can make putting out the outdoor lights down right misserable. Now, this doesn't mean you have to turn them on at night, but I can certainly understand puting them on the house a bit early, espeically if there is a really nice weekend to do it. DH was tempted to do it two weekends ago, it was SO nice out. But he got lazy so it will be done T-day weekend, we'll just have to hope for nice weather.
All that said, I think it's what we make of it. I remember seeing Christmas stuff in stores before Halloween when I was a child (so 20-25 years ago) and complaining to my mother that it wasn't even halloween yet, why was the xmas stuff out? So this really isn't new at all. But if you don't decorate your house (except the lights!

) and don't do the Christmas shopping, and don't play carols in the car and don't pull out the Rudolf dvd's (and I agree, it was so cool to have to wait for the special each year!) then I think you still are keeping Chirstmas special, and not steam rolling over T-day either. Heck, I love fall decorations that go with t-day, I'd never want to skip over that!
Sure, the stores and tv comercials with the christmas music make it a bit harder, but it's not that hard to avoid. Just stay out of the malls and mute the tv during the breaks and keep the kids out of the chrismas dvds!