If your goal is to make money off your hydroponic crops, there's really no point in growing ordinary radishes, which are cheap and easy to obtain year-round. Corn is another example - it takes up a lot of space and produces relatively few ears, and corn generally doesn't bring a high price anywhere.
Some growers don't see the sense in growing vining crops like peas, pole beans, hops and nasturtium in a hydroponic setup. They can certainly thrive, but they require a lot of work. Even when vines are supported by trellises to keep their footprint relatively small, grow lights require constant adjustments, nutrient levels must be recalculated based on the stage of plant growth, support structures need to be constantly checked and improved, and pruning is a never-ending chore. That's not to say that it never makes sense to grow these crops hydroponically, just that they typically require more effort to grow them well.
