Most of us like a wide variety of music but lp tends to be our favorite hence us wanting them to release albums more frequently than every 3-4 years. Some of us realize the wasted potential here as they get older, they will not sound as good, ie chesters voice.
The perfectionist label they have has to be lifted, with all of the material they write, there's no reason that every 2 years we should have a 15 song cd.
Mike wrote lockjaw in one day and it's amazing, I think they just tend to over analyze stuff.