I'm a one man shop, our business has been around 30+ years now. It used to ring probably 10 or so times a day, and most would be sales. Five years ago we moved into a more downtown shop, now I get probably 8 drop in's a day wanting pricing on stuff, just wasting my time, and I get A LOT of stuff through email now. When I get things through email, it's from established customers that already know me, and don't need estimates, etc, they just say DO IT, so that's a WAY better thing for me to get.
Now days...sometimes my phone only rings once a day...but I'm still working away with other means of people placing orders.