Yes. I co-founded a business that:

    1) Had a few competitors 
    2) Had web savvy customers 
    3) Had non web savvy providers

So with a nice website and a small adwords budget ($10 per day), we got $500,000 in orders in 4 weeks.

And if you're curious ... We install floor and wall tiles in the bathrooms of large hotels. Everyone laughs at our faces when we tell them what it's about.