The discount listings are mostly generic because there's a lot of them that vary depending on where you live. After signup, there's an app that shares all of the discounts. I think it would be easy to cover the cost of an annual membership with these offers. In an extreme case, I recently spoke with someone who saved hundreds of dollars on their new fridge because of our discount with Home Depot.
In addition to discounts, membership serves as an entry-point to some services that require a USFAA membership. The two that come to mind are USF Federal Credit Union and USF Campus Recreation. Note: the campus rec access is the ability to purchase a membership, not the membership itself.
I chat with a lot of people about membership and whether or not they should do it. When these conversations occur, I like to talk more about the impact of membership than the discounts and other benefits. As the association's mission states, the goals of USFAA are to help Bulls make an impact on USF and student success, protect USF, share pride, and stay connected. Membership dues help in all of these areas. The mission statement can be viewed here and provides a high level view of what the association is doing to achieve its goals. https://www.usfalumni.org/s/861/02-alumni/index.aspx?sid=861&gid=1&pgid=287