There is a good article that posted recently on the No-Till Farmer.com blog about how several midwestern farmers are dealing with standing cornstalks that are known to puncture tires and killing cover crops prior to corn/soybean planting.
Some of these innovative farmers are turning problems into profits and saving their soil at the same time. Custom rollers and crimpers, that are used to terminate cover crops, will pay for themselves through increased soil organic matter–and renting the equipment to neighbors. Plus these implements are doing double duty when they knock down those pesky corn stalks at the same time.
Equipment that can do more than one job is a good thing.