1. A method comprising: selecting a plurality of features to include within a predictive build of a computing system, the predictive build being an anticipated final build of the computing system prior to receiving a firm customer order for the computing system in accordance with which an actual final build of the computing system is then built; estimating a marginal cost of first building the predictive build and then modifying the predictive build to realize the actual final build, as compared to building the actual final build without first building the predictive build and then modifying predictive build to realize the actual final build, based on the features selected; responsive to determining that the marginal cost is less than a predetermined acceptable marginal cost limit, performing: building the predictive build prior to receiving the firm customer order; and modifying the predictive build to realize the actual final build upon receiving the firm customer order.