As of 2015 Prebys' Progress Management owned 81 properties in the greater San Diego area and had an estimated net worth of approximately US$1 billion.
Recipients of Prebys' scholarship funds include those pursuing biomedical research, those practising the creative and performing arts, those inducted into the Guardian Scholars and SDSU Honors programs, and those studying entrepreneurship and leadership.
He visited the campus shortly after the gift was made public, where he was greeted with a warm welcome by students, faculty, and Kelley School of Business dean Idie Kesner.
Many of the school's students created posters and cards to thank Prebys for his generosity and philanthropic vision for the forthcoming career services center that will bear his name.
During his time as a student at Indiana University, Prebys was an active member in many student organizations including Delta Upsilon fraternity, Indiana University's Playbill theatre group, the Scabbard and Blade Club, the Army ROTC, and Theta Alpha Phi - the national Theatre Honors Fraternity.
In June 2015 Prebys was awarded an honorary Doctor of Humane Letters from San Diego State University's College of Business Administration.