I have to admit, this is a tough question. Most of the things that I can think of, take precedence over tickling, as they are day to day indulgences or necessities, whereas tickling is like, a desire that only gets fulfilled every so often. Tickling is not a part of my daily schedule, so therefore, I really can't put it before anything.
Does this mean I don't love tickling? Absolutely not. I do. But tickling to me is like a love interest that comes about at its convenience. I cherish the moments we spend together, but I cannot put it over anything in my life.