Sometimes its nice to start fresh and have everything in its place. The 'systainer' its self sells for around $30, I don't really see the bits included adding up to the additional $30 for the set. Also, those bits included would be great for a cabinet fitter using a standard drill, but I think there are better options from Makita if impact use is what you need - such as the Makita Gold or ImpactX. I have a few of these Makita cases and as stated on other post, the latches can be a real pain. Adding the occasional dab of Armor All with a cotton swab seemed to help.
Like you, I wanted to get a fresh case of bits with everything in its place. I searched around post for highly recommended impact rated bits, I sided with Milwaukee Shockwave as reccomended by Toolguyd.com. The bits are okay I guess in terms of durability and grip, but the case is absolute garbage. The bits are a royal pain to get out and put back in. I will not buy again.
Krugerconstruction (instagram) showed the ease of access on the new Makita Imapctx cases and I regret not going this route.