In the past few months I have been experimenting with soft plastics on my 9' - 6/7-wt. for bass fishing. They enable me to fish in dense vegetation, brush and heavy timber - areas that I would not have been able to effectively fly fish before. And they work well, too! In the past two months I have caught 5.5# and 4.8# bass using Tiny Senkos.
To me the fun is in sport of fly fishing, not the art of fly fishing. To others the enjoyment comes from the art of fly casting, the art of fly fishing, etc. Each to his own. I use what enables me to catch more and bigger fish while fly fishing.