And every word in Shakespeare can be found in a dictionary.....
Old forms are not just catalogues of individual techniques, they are sentences even paragraphs. If you just see the individual moves then you miss most of what the form is there to teach you. Its true that some newer generation forms are just individual moves randomly put together, but old forms always have multiple levels of strategy and rythm and principle. Even if a form contains no new techniques it will say something useful. They don't all need to be mastered but its a good idea (and enjoyable) to 'read' them.
@Jimbo, Yeah, I get what your saying. I see the importance but I am also of the opinion that if you only do MA for self defence that doesn't seem quite right, its like your pushed towards it rather than drawn towards it if that makes sense.