When those functional requests can be applied to our baseline ToolTrack product, not only do we bake them in for future customers, we also ask our existing customers if they would find that capability useful. If they like what they see, we deploy it in their ToolTrack application for free! From our perspective, if the development of that new feature has already been paid for, it makes sense to provide it to anyone who could use it. It's like the "give a penny, take a penny" tray at the store, and over time, everyone wins.