Your story is the about the same as mine. My son and I have shot so many hogs that we quit keeping count, but I'd guess maybe 30-50 a year for 5 years or so, and most of them shot during the daytime.
We realized we still were not making a big impact on their numbers, and the only way to keep them away was to not bait with corn. 2 seasons of no corn, and we were not dealing with pigs. It actually was nice not to have to purchase and mess with baiting, and we still had the same success with deer without baiting. At this point, we only sprinkle some corn in front of the many cams we out, just to get them to stop long enough to get their pic taken.
It really hard now to find them, especially in the daytime. About once a year now, they'll show up and I'll usually hunt and kill the big boar. I used to tell ppl who wanted to hunt them with me how easy it was. Drive down Friday night, throw some bait out, and hit it Saturday and I'd guarantee at least 1 shot. It's not that easy now, which is fine with me.
However, even with all the aggravation they cause, I kinda miss them a little myself!