ORIGINAL: Remnard
Shouldering a muzzleloader alone should not dictate your purchase. Ease of cleaning, like an easily removeable breech plug and a seal primer chamber to keep the weather out are just 2 requirements I would look at.
These things use corrosive powder and I have seen many a barrel ruined by neglect because it was a PIA to clean.
I understand your point, however, if someone doesn't want to take the time to clean it correctly, it's not the gun's fault for being more complex than another. It is blackpowder after all.
If the gun is not comfortable or does not fit right, the shooter will not enjoy it as much.