Selling 100 units per year is a nice spot to be in because you're making sales frequently enough that you probably have some knobs to adjust and see what impact it has on your results, and that makes it so much easier to improve. That's why I've always been afraid of businesses that rely on enterprise sales, where you're going for 3-4 big deals per year, and the sales cycle is 6-18 months. It seems so hard to know whether you're doing well or poorly until it's too late.