There are exceptions, but for the most part, I only purchase PSA graded tickets. In regards to tickets, I mostly collect World Series. Just my opinion, but from what I have noticed, there is a greater disparity between collector's opinions of grades when tickets are involved. from what I have noticed, many more tickets are returned with grades of "authentic" than cards of a similar vintage. this makes me doubt any non graded ticket. with that said, most tickets are raw, which makes me doubt those items even more because of the above. in my experience, many more tickets were glued into albums or trimmed (to remove perforations) than cards which explains more gradings of "authentic". also psa grading allows you to join the set registry which I find very enjoyable.