It depends. If you have a hobby business, or personally have a knack for branding, marketing, and SEO, a subscription service may be overkill for you. Likewise, if you are large enough to have an in-house graphic designer or marketing team, you may already have your bases covered. However, if you're somewhere in between, a flat-rate, monthly graphic design subscription service is probably the most cost-effective way to build your brand. This setup allows you to develop a strong working relationship with "your" graphic design team at a fraction of the price of actually hiring an in-house team. Over time, they will start to anticipate your needs as they get to know you and your small business.
Graphic design subscription services can cost anywhere from $200 to $2,000+ per month. A good graphic design company will help you find the level of service that perfectly fits your needs. When choosing a subscription service provider, look for one with transparent pricing and a results-driven approach so you can be sure to see a good return on your investment.