CMM, my guys had the same reaction about me fly fishing in a pond. But, with my clear water, I can't help but feel I'm getting more bang for the buck from my pond. My fish are rarely spooked by a fly, and I can auto-cull by hook size.
With all the wind we have around here, a pond also gives me the ability to fish in any wind direction. I just move to the side of the pond I want, and fish in whatever conditions I want.
My wife and I took our first trout trip in almost 20 years this Fall, and our guide rolled his eyes when we told him we only pond fished. It didn't take long for him to come into the fold and realize that all that water time really helped us both. Casting a fly 4' above an eddy was almost cheating after throwing flies at pockets in water primrose for 2 years.