99% of people I see trout fishing has a fly rod. I have owned several and still prefer a spinning rod and reel. The wind doesn't bother me, nor do the trees behind me bother me. My old eyes can't see enough to tie a fly on. And, I have better success flinging a Kastmaster than the guys fly fishing have.
The wind does not bother a fly caster just as trees behind him. There are ways to deal with these situations.
As far as your better success, maybe you do. But I know this, there are times when a fly works better than a spinner. Every dog has his day.
One thing most don't get is that the method you use is part of the enjoyment of the process. If all you care about is filling your limit than your your just one step away from going down to the market and buying your fish.
Great satisfaction can be and is derived from fooling a fish when you put limits on yourself and do it in a more challenging way. Again, if all you want is fish its quicker and easier, and more than likely cheaper to buy them at the market.
As far as getting into fly fishing, its a broad field. Dry fly fishing, nymph fishing, swinging flies with a switch or spey rod are all ways to catch trout with a fly but all require different skills and types of flies. And thats not even mentioning other species of fish out there.
OP should let us know what kind of fly fishing he plans to do in what type of places.
The way I catch trout on a fly will not work for all fly fisherman.