I think black powder is MORE FUN than cartridge/smokeless powder. To me that is the advantage.
You know what? That's the kind of advantage and opinion I can respect. I get that, and it's a completely reasonable justification for going BP. I recognize I'm more of a "facts" and "logic" kind of decision maker. Hey, I'm a programmer, what do you want?
I am also heavily swayed by my dislike of cleaning firearms. I LOVE shooting them, HATE cleaning them. Plus, with a family, I don't always have time to clean them as soon as I return from the field. Don't get me wrong, I do keep my guns clean, I just don't LIKE the job.
I don't like it when people attempt to spread FUD about smokeless muzzleloaders and their safety (or lack thereof) due to one guy's (with an axe to grind) ability to blow one up. I can blow up a BP gun too. In general, this thread has been devoid of that, but I question the motives of a couple of posters.
Smokeless is definitely the way to go for me due to several advantages which have been posted above ("mykeal" apparently missed them all, but hey, most have taken the time to R E A D them!) so I won't repeat them again.
So there ya go, opinions are like...oh wait, can't say that...and I have one too.
Zhe Wiz