Because lawyer salaries in the US have a bimodal distribution, I would not be surprised if the disposable income of law students does as well. If that's true,

Because lawyer salaries in the US have a bimodal distribution, I would not be surprised if the disposable income of law students does as well. If that's true, then segmenting for one mode or the other might make sense...and conversely just targeting "law students" as a single segment might not. For example, students with money to eat at the high end cafe would tend to expect a high end experience and expect to pay accordingly, while ramen students would seek a value price and accept a less luxurious experience. Or to put it another way, some segments are a choice between bread and cake. Other segments are a choice between bread and nothing.