Configure, Price, Quote (CPQ) applications are price calculators for products with multiple configurations, different packages, add-ons, and discounts. CPQ engines allow the sales rep to input everything the customer is looking for and produce an accurate quote in less time with less risk for human calculating errors.
Would you shop at a grocery store where all your cashier has to ring up your order is a calculator? Then why would you leave your sales reps with a pricing guide and a spreadsheet? Calculating is for computers. Leave the selling to your human partners and sales reps, and let a CPQ engine build accurate quotes behind the scenes quickly and without worry of errors.