We recommend getting a 1800# for your business as soon as possible.
In business, communications are everything and if a cheap, 12$ per month 1800 number will help you to grow your business then you need to have it.
Although we no longer use payphones in mass, payphones are still in use and if you operate a wrecker company, or some other sort of business where someone may need your help on-call, having a toll free phone number is the best way to let the customer know that you will go out of your way to help them, prior to them calling you. 
People need to know that your business is there for them. This has a lot to do with getting your customers to help you grow your business and this has a lot to do with making money.
Image Projection
Wanna Be Taken Seriously?
Having a 1-800 number as a component of your marketing arsenal says a lot about you, your business, and is worth every penny as far as the image it can help to project to potential customers and clients.
Look More Professional (Hint: $$$$)
One doesn’t need a toll free phone number in order to portray a more professional image, but the more accommodative your business is, the more your potential customers and clients will respect your business/expect to pay, thus, you can charge more for products and services. A 1800-number alone won’t do it, but a 1-800 number with a good looking website, and a respectable address will move your business from $$$$ to maybe $$$$.
As affordable as a 1800 number can be nowadays, doesn’t it make sense to bless your business with one?