Ha, I have about a dozen Latin sets of the Summa ... picked them up all over the place. I was a graduate student (Greek and Latin Patristics) at The Catholic University of America. There was on the edge of campus a building known as "The Dominican House of Studies". I made some friends among the older Dominicans, and whenever an elderly priest passed away, they called me over to see if I wanted any of their old books. Of course I took everything pre-Vatican II that I could get my hands on.