For getting the paper so you can file I think this class was a good deal, it's $50 cheaper then the Silver Bullet and they supply the gun and ammo.
In general I actually agree with you simply because you are knowledgeable and savvy enough to search out the answers to self defense situations and the laws for yourself. You already know about valuable resources such as MOC and MGO and use them, and how to look up MCL (Michigan Complied Law) and read it for yourself.
On the other hand, if you were more sheeple-like and learned nothing beyond what the CPL class taught, you'd do yourself a disservice not to get the best class without regard to cost.
You are already miles ahead of most of the 340,000 CPL holders. If you could have afforded it, the extra $50 would have been worth it, though. In the larger picture, $50 over time isn't that much, especially when talking about something like carrying a firearm and self-defense.