WOULD LIKE YOUR OPINION AND INPUT PLEASE

Several years ago I bought a 650 acre ranch and high fenced it. This property is all native South Texas brush and is very thick and dense. After killing 95% of the native deer I brought in both bucks and does with superior genetics to try and improve the quality of deer on the ranch and have had tremendous success. All of these deer were just turned loose in the 650 acres. The original bucks (3) and does (9) that I bought were turned loose with tags in their ears so we could identify them from any native deer that may have escaped our initial harvest. These 3 bucks are now beyond their prime breeding and antler growing years and contribute nothing to the ranch because now there are much better deer of prime breeding age. In your opinion would you pay to shoot a 150 to 160 class wild deer that happens to have a tag in his ear or should I just eliminate them from the property on my own? These deer are wild animals and difficult if not impossible to find except during the rut. It would be nice to recoup some of my investment if possible but I just want to know how other people feel about this before I make my descision. I am split right down the middle and can see both sides and would like to hear other peoples honest opinions without this turning into a high fence low fence, pen raised bashing issue.