In my experience, kits serve a valuable purpose for those of us not skilled and /or committed enough to the muzzle loading hobby enough to build a rifle from scratch. I myself have a good dozen interests in the shooting world that vary from airguns, action pistol, precision 22, trap shooting bullseye pistol, centerfire...... In short, black powder is just one facet of my shooting interests and it competes for my time with the others. At 66, my eyes are going and my mechanical/artistic skills stagnated with arthritis and diabetes. So for me, the 3 kits I've built (including my current Kibler SMR) are likely as involved in gun building as I'm ever going to venture. I have no skills for stock shaping, precision inletting, intricate carving, metal shaping/ forging etc. This is pretty much as good as I get.
That said, I'm grateful for the availability of good kits and really enjoy the building process / level of effort involved. The kit gives me some output for the skills/passion I have without over commuting my time or skills.
To those committed enough to build from scratch, I envy your skills and the ability to focus on a single hobby like that. I really do. It's just not going to ever be my path. I won't apologize for it either. To each their own.
p.s. My Thanks for Jim Kibler for taking me that next step over the previous traditions/CVA kits I tried. In my experience, he has found the right balance of testing skills required for the average Joe vs the potential quality of the finished rifle. This SMR likely won't be the last of his kits i purchase.