I've made my own, and bought crusts. I've made the typical pie crusts, as well as ones from a few different types of cookies, such as chocolate cookies, shortbread cookies and also vanilla wafers. I love having a dessert made from scratch from start to finish, because that's how my mom did it, but part of the reason she did was because what we have now for the most part, wasn't available back then.
Pie crusts aren't difficult to make, but they do add a little time to the process, and if you don't have much counter space, or have difficulty with hand/wrist limitations or pain, it can be easier to simply buy the crust. I think either can taste good, and you can always customize the store-bought crusts with cut outs or top it with something like turbinado or colored sugar to make it seem more homemade.