I don't put a title on every page in a themed album (like an album dedicated to one WDW trip for example). But I try to put a title on every layout of my kids "life" albums because the pages jump from day to day, theme to theme, event to event.
With my WDW album, if I have title space (like if I use a BH Sketch) and an obvious title comes to mind, I use it. Otherwise I don't worry too much about it.
There is someone over the scrapbook thread (where we post our layouts) who titles every page and her titles are great. But I can't remember her user name. I'll check it and let you know.............P
Okay.... her user name is "latharia" .... just do a search for her post on the virtual scrapbook thread. She has great title ideas.
FWIW.... Since we usually do just one park per day, I usually title the opening page of that day with something like "Good Morning Magic Kingdom" or "The start of another fabulous day at the Magic Kingdom" type thing. And our last photos of a day are generally entitled..... "Good Night to MGM Studios" or "The end of our Epcot adventure" or something similarly non-exciting! HTH.......P