ART, in my experience the longer a blind is in place the less attention deer will give it. It is my opinion that the first day in a new location will be the best because the deer will not be expecting it and as long as it does not move, or smell-as you pointed out, they usually do not run from it.
By the way, I recently read a aritcle concerning some recent work done with human pee and the deer sense. The findings were that when a deer comes up on human urine in the natural environment he will smell it and be curious as he would the urine of any other "animal" but not panic in any way.
I have boxes, tripods, ladders and climbers on my place and seems to me that regardless they watch um but do not avoid um. This past fall I was in a ladder stand which had been in place for a couple of years, over a biologic plot with several deer in it, and once it got dark, two does stood within 15 steps of it and watched me lower my bow to the ground, stand up, turn around and step down to the first step before they ran.
For saintjb, I too am into those years(70) and I still climb trees but I also use the ground blind more and more. Another trick that I use, with regards to odor, I pulverize charcoal briquets (activate it) and put about a pound or two in the foot of a painty hose and put it in the pop-up blind container. Don;t know if it helps or not but think that it does. I also hang a couple in my camo cloths closet (ole lady still hasn't figured out where her panty hose went)