Here is some advice: if you are currently in a 100% salary "sales" (using that term loosely) role and you enjoy the thrill of a sale, money, and a higher satisfaction at work...leave immediately!
I started my sales career in this kind of role, not knowing any different. I did that for 7 f'ing years! Now, I'm in a commission based sales role and LIFE is so much better! I'm making more money, enjoying the sweet satisfaction of a closed sale, the increased motivation of a lost sale, and a higher sense of satisfaction knowing that the money I'm bringing home is sweet sweet money earned.
Look, if you're a lazy person who is unmotivated to pick up the phone and make 1 more phone call. If you're satisfied knowing exactly how much money you're going to make in the next 12 months, no matter how much effort you put in. If you don't enjoy learning from your mistakes and celebrating your victories...then enjoy your straight salary and cost of living raise at the end of the year.
If, however, you're hungry to earn more money, looking to increase your job satisfaction, motivated to improve your sales skills, people skills, and life skills, then please do this: start looking for a job that is commission based or at least salary/commission split. You can thank me later.
Getting off my soapbox now. Good luck, comrades!