If there wasn't blue grass then there wouldn't be alot of great music like Jamn Bands and Rock-n-roll or even blues/country !!one of my favorite bands are the Alternate roots.
Old-time music is not really commercially viable, so nobody's making any money to speak of selling CDs. Most musicians who play this kind of music do it for the love of traditional music. So you're not likely to find much of this music in regular record stores. But to answer your question, here is a website dedicated to old-time music, and there're sources on there listing lots of old-time artists. http://www.oldtimemusic.com/index.html Ivy Creek, the link I previously posted, also sells mostly old-time artist recordings. And here's another link I ran across that kinda talks about what old-time music is. http://www.gordonbanks.com/gordon/interests/otmusic.html
