Again, I want to thank everyone for their input. Just to rest your minds, I don't have a hair sporran...yet. And if I ever do purchase one, it wouldn't be for everyday wear. I would only consider it for semi-formal daywear, a time where someone might wear a light gray argyll jacket and muted(ancient) tartan kilt. I don't think it would look right in a dark colored jacket or a kilt of modern colors.
Call me crazy, I guess I just like the look.

I have a b/w photo of my Great Grandfather standing outside of his croft in his kilt, jacket and vest with watch chain and fob, and is wearing a long horse hair sporran with what appears to be black hose and black lace up shoes. The photo dates around 1880. He is not in his "Formal Wear", nor was he a piper. However he did serve in the Black Watch, so this may be his sporran from his time in the service.
BMackay has probably got it right. Perhaps the photograhs and illustrations where we see a hair sporran worn with civilian dress is a reflection upon their previous military experience.

Highlander_Daz:
Thanks for posting that photo. Its great that you have such a treasure.