Under price it and there won't be any business the next year. Is there any such thing as "over pricing"?
In any business, there is a break-even price, then there is a profitable price, and then there is a prospering and growing the business price. Which would you like to do? Break-even, profit one cent/job, or prosper and grow your business? So you see there really isn't such a thing as over-pricing but there is such a thing as making more money.
Also, just because work is slow, it isn't a reason to commit suicide. Which is what is done if pricing work soley to land the job without any thought of profitability. The saddest part is that lowering a price to secure a job isn't even a 100% guarantee of getting the job. The customer may hire the higher priced guy anyhow. So all that lowering price does is to make ya go broke faster or not get the work at all.
Just something to think about.