I think the late season is great in that there still is the odd chance that you may get to nail one of those big boys that made it through early archery and rifle. He needs food and warmth just like the rest.....at least that is what I tell myself each year.
I agree with Jerry in that the key is to dress warmly so you can stay on stand as long as possible. If you are in an area with plenty of deer sign late in the season then chances are good you are going to run into them at some point during the day.....though they could be traveling before first light because of previous hunting pressure.
I still love it almost as much as the early season.