Material pleasures have severe limitations. One limitation of material pleasures is that in excess, they can be harmful. Food, for example, is good for us and it is also pleasurable. However, at a certain point, food is no longer beneficial. In excess, food can even become fatal, all the while being pleasurable.
Material pleasures have another limitation.
Man's appetite for pleasure far outstrips the ability of the material world to satisfy it since, in reality, Man is seeking the ultimate pleasure in Hashem. The second time we experience a material pleasure is rarely as good as the first time. In an attempt to recapture our original pleasure we increase the dosage of stimuli more food, a faster car, or more exotic travel. As the dosage increases we imperil our health, finances, and other worthwhile goals just to achieve the same pleasure we had the first time. This means that no matter what we experience, we are still far from satisfaction.