I bowhunted exclusively for 27 years. My wife and I have always liked to walk through Rendevous and I always thought traditional muzzleloaders where pretty cool. In 2000 I took the plunge and bought one. At the time my state was bulging with deer and they were finally allowing multiple tags.
Today, many areas of the state are back to allowing a single deer, but I continue to hunt with muzzleloader during the open gun seasons because I still consider it a "primitive" hunt that requires significant skill and gives the game a fair chance. Since I started hunting for only mature, large bucks (or does)it gives me some additional range advantage rather than using bow during gun season when they get quite spooky and that much harder to hunt with bow.
In addition, I love just carrying the gun and a simple possibles bag, sitting my hinder on the ground against a tree wherever the sign looks hot, and enjoying the day. I probably miss seeing some deer while I'm staring at the beautiful wood patterns in the stock too!
Other than one week with a Red Hawk .44mag pistol, I've never hunted deer with a modern firearm and at this point, cannot imagine I will ever have the desire to. I just personally have to hunt "the hard way" to feel right about it. Hunting with a traditional muzzleloader makes you a part of a very special group of woodsmen & women and is something you can truly feel good about whether you bring home game or not.