If I hadn't decided to go with a cab high truck topper again, I would have bought the Extang Full Tilt tonneau cover. It is just like a standard snap (or snap-less, available both ways) cover, but will lift up just like a fiberglass tonneau. BUT the best part is if needed to be removed, it only takes a minute just like the tri-folds. There is a small frame that is left, but I never had any issues with the frame being in the way when I had one on my 2K Chevy.
About $400 +/-.
My concern with a tri-fold was in winter if any ice/snow was on the tonneau it may damage it.
Good luck deciding!