Cambee, I should have said as well, don't whatever you do under-price them, or you'll paint yourself into a corner. We've been putting our prices up by £1/kg each year to try and get to where we should have been to start with, and folks get snotty.
If only we'd said "normal price £15/kg, but we're running a special offer if you order by the end of the month, at £10/kg", I'm sure we'd sell more easily, and would have more pricing flexibility year on year.