I have fly fished and guided fly fisherman most of my life. The only thing you are missing not fly fishing in a lake for bass is a head ache.
Fly fishing for bass can be done, and at times be the most effective way to fish, but most often it is a waste of time.
I love to fly fish in streams for trout, bass salmon, and many other species. Fly fishing in small streams is extremely effective, and if you are skilled it will out fish other methods on most days. Most of the time, you are fishing fairly shallow water, and using the current to present the fly flat out works. Fighting a bass in current with a fly rod is as fun as fishing gets.
The problem I have with fly fishing is using it in situations that only make fishing much harder. Here are some examples I have fly fished and guide fisherman, that I don't like and some I simply wont do again.
1. Fishing for King Salmon in swift deep rivers. It can be done but other methods not only produce way more King Salmon, they are less difficult, and in my opinion more fun. The few smaller streams that have King Salmon make for great fly fishing at times, and I recommend fishing for them this way if you have an opportunity. Trying to force fly fishing techniques for King Salmon in most rivers results in nothing but frustration.
2. Almost all Saltwater fishing. Tarpon, Bonefish, Rooster Fish, and other inshore fish can provide great fly fishing action. The problem with fly fishing for these species is you better be good at fly casting heavy lines and flies. It may take three days to finally tease a Rooster Fish withing fly casting range for an expert caster, and they still can choke when the cast needs to be made. An average caster has zero chance, I repeat zero chance at catching a Rooster Fish. An angler may get many more shots at Tarpon, but still needs to have expert skills to have any chance at hooking and landing more than a few. Fishing for most other saltwater species is nothing more than a joke. I know people have caught almost every fish that swims on a fly rod, but the fly fishing magazines make it look like far more fun than it is.
3. Bass in large rivers and lakes. Other than fishing small in calm water with poppers, fly fishing for bass is a long boring day, compounded with moments of complete frustration. It can be done, but give me a T rig and a baitcaster every time. Fishing with heavy sinking lines, in order to get down to the bass, is not the kind of fly fishing I want any part of. The line is hard to cast, and just does not seem like a natural way to fly fish to me.
The short version is, fly fishing is fun for many different species of fish in small rivers, ponds, and some other conditions, but for most bass fishing situations, an angler is far better off using conventional gear.
Many of my purist friends are certain I have succumbed to the dark side, but the truth is I never bought in to the purist attitude to start with. I have even been known to cast a spinner in a pristine trout stream if the rains have blown out the entire river, I drove for hours to get there, and it is the only way to catch a trout.
If the conditions are right, I will choose a fly rod every time. I can also fix a car with a screwdriver a pair of pliers and a Crescent wrench, but I prefer to use the right tool for the job. The right tool for bass in Mexico is a baitcaster, and that is what I use.