Actually, slider-pricing is often a bad idea for B2B-SaaS tools. Simple reason: Almost <i>every</i> purchasing process in almost <i>every</i> company (other than software startups) is expecting a fixed, monthly rate. Put yourself in the mind of your champion: Do you want to push a deal like any else through management, procurement, etc (which is already hard enough), or do the same process every month for a slightly different price point?