Pricing depends on the quality of product you start with, the skill you have as a roaster, and the confidence the customer has in you based on your proven skill. For us, everything we buy is above Specialty grade 85+ on a cupping scale, and our reputation is built on quality.
We have tiered pricing starting at $18 and going up to $24 (18, 19, 21, 22, 24) for a 312g bag -- depending on the coffee. (More for CoE or Best of coffees). Typically the $22-$24 go fastest because they comprise only about 20% of our offerings (rarity). Most of our coffees are priced at $19 and $21. Other roasters in our market are priced about $13, and $15 for the "better" stuff, but the others neither source the quality of beans, maintain the same freshness standards, nor have the same roasting skill. Thus, theirs is a poor value.
If everyone collapses around one price, you will only stand out if you are markedly higher AND have a superior product. Set a higher standard than everyone else in your market, exceed that standard by continuing to improve your skills, and even at a high price, you will often be seen as the greatest value.
addendum: When I started roasting in 2005, we did # and 1/2# bags for $17 and $9, respectively. As we progressed, I wanted to move to one size so in late 2007 we started 12 oz (340 g) only for the same $17 and finally settled on 312g a few years ago, with improved packaging, and moved our lowest price to $18. So it's a progression. However, when you look at how you are pricing things now, you need to look at things with 2014 eyes and 2014 prices.