It is a lot of fun and allows you to hunt more days per year as there is usually a separate season for muzzleloader only. I know there is here in Michigan. I started with a side lock percussion white mountain carbine and it has done quite well over the past 15 years. However, now that my sons are getting in to it, I needed to get another one and went with a CVA Wolf inline 209 magnum. Not that I will need the magnum probably ever, but after using the side lock for so many years I wanted to move to the next level. The wolf has modern lines and was only $179 at my local gun store. I'm sure a lot of people don't think the inlines are "traditional" in their endeavors, but I wasn't looking for that as I already have that.
Getting the old one ready, the nipple had rusted shut again on me and it was a stainless steel one. Thought I had scrubbed it good after the last time, but I guess not. Black powder/pyrodex is very corrosive so if it isn't perfectly clean you will get rust that can ruin your day in a hurry. I'm sure the newer inline ones will be the same, but they seem like they will be much easier to clean with their removable breech plug.
My two cents worth.