I beg to differ, I dont think deer just randomly travel for no reason very often. There is likely a reason he went through there and likely a reason he or other deer would go through again with the identical wind situation.
I hunt large tracts as well and yes deer are hard to figure out but patterns are still there. I can tell you one thing, I wouldn't sit in the same spot again! Look at it this way; you could sit in the same spot where you didn't see any deer within range or you could move to where you saw deer within range. I'd say that ups your odds!
Every year I talk to guys who say something along the lines of: "I've been seeing deer but not within range, I'm thinking of moving my stand" ...well, move your stand! Lol
My rule is this, I won't sit in a new spot more than twice if I don't see a deer within range. My more proven spots I'll give three chances