That's a very good point. I'm just starting out with bows but it amazes me how some people think something is quality when it's really CRAPPY! I'm a bit of a perfectionist and I'm always afraid someone isn't going to like what I made/gave them so I try to go the extra 10 miles, but in reality it's always better than anything they would have gotten from anyone else.
As far as quotes, I would say not less than $5 per bow since the girls probably pay for them themselves. $5 is nothing really, especially if it's going to get them through the entire season. People also don't realize how expensive supplies are.