Indian Arrowheads

You have some cool points there. It's hard to tell the size but the scraper could be what is called a "thumbnail scraper". Does the bigger point in the lower left have concave grooves running up both sides from the bottom? Just trying to guess age and style. As for price, can't help you. I have a bunch as well, the oldest being 10,000 BP, but no idea of any real value.