I currently print a new brochure every quarter, 2500 copies each printing. These are used to hand out when making PR Calls and during networking events. I like to include photos of recent jobs, and always include any new products that have come along since the last printing. I often get support from vendors to help cover the costs of printing(about $200.00) per quarter. If the vendor does not have any MDF(Moo-la) available they will usually send sample material that I can turn that into cash.
I use a simple clean layout, Basic company info, recent pics of jobs, or past work, a few specials..one new job will cover your cost for the year....talk about a no brainer!