Yes. But not in the way you suggest. High quality materials makes it easier to tie as they are easier to work with. Having the right materials (suitable elk hair for an ehc wing) will make managing the material easier and result in a nicer fly. Also, high qultiy materials will have different properties for your fly as well. Purchase small amount of high quality stuff and be intentional about buying materials. Just trying to accumulate materials will not help in the end.

Best,

FT