Have you yet found your advertising style? Don't assume that the materials you use have to be the most elegant things possible in order to be successful.
I have seen the cheapest looking direct mail materials that, when delivered consistently, have produced great returns. There's a chiropractor I know that has sent out cheap looking (courier font) yet highly creative materials and has received a flood of business over the years.
I think the best way to go is to have materials reflect your business and approach. If you're a high-end business, then you need to have elegant materials. If you have products that are typically one-shot sales, then I would suggest jargon-rich, less expensive materials. When considering an Atlanta advertising agency, I recommend that you collaborate with them all through the process so that your advertising reflects your business. Effective Atlanta marketing depends upon it.
How would you rate the materials you send out?