Pricing will drive you crazy, if you try to compete with everyone else. A printer that is notoriously high on some jobs, might be the cheapest on brochures. Another that is dirt cheap on flat work, may not have a bindery, and will be the highest on pieces requiring folding, creasing, binding etc. You have got to set your pricing based on your costs. Now the down side of this, is that you may be leaving money on the table, so once you figure out what you have to charge, you can bump it up until you notice work slowing. Certain high maintenance clients will be happy to pay a big premium for always having you available at a moments notice, to solve whatever last minute catastrophe they are having, so you can, and should adjust your pricing to make up for all the time you spend holding their hand through projects.
And of course, if you don't have the right equipment for the job, you are always going to be higher, and make less. We bid on a project package for a University that totaled around $70K. I bid it very cheap, just to fill in some of our slow times, and see if it would be worth doing again. When they released the bid results, we were the cheapest printer in town, but only by a small margin. Another forum member, who has a print shop about 80 miles away, also bid on it, and by having larger presses, was able to win the bid. That doesn't bother me in the slightest, because I see the logic. What kills me is when a printer, undercuts you a huge amount, and you know they have the same equipment. You tend to think they know some secret, but in reality, they are just losing money on that project, for any number of motives, mistakes, or ignorance.
Some clients get bids as part of a procedure, and don't even get bids from anyone else. They just want to make sure your price fits in their budget, or isn't more than they expected. Sometimes you are only bidding against yourself, and that is another case where you can be leaving money on the table if you try to compete with the cheapest guy around.
Another thing to think about, is that many print shops have large clients, that aren't looking for the bottom dollar, and keep their doors open. Everything else that comes in is just icing on the cake, so they can afford to make much less on those types of jobs if they want to. Everything is so dynamic with local print shops, but the ones on the internet, who post their prices, tend to rely on massive volumes, and limited options.
I know I rambled on, and hope you found some of it useful.