Points? Is that your only criteria to label them as "contests?" It's not that simple. They are more akin to the domestic equivalent of a DXpedition. In any given week, there are a very small number of stations operating from usually 2 different locations (sometimes 3) on a number of band/mode combinations; for example, as this is being written, W1AW/3 DE and W1AW/5 LA. They are not on all (non-WARC/WRC) HF bands at all times. They are working stations to "hand out" their states (or territories or district in a few cases), and in doing so, promoting the ARRL Centennial. The "points" towards a Centennial Certificate is not the sole or primary reason that they are currently on the air. And most importantly, you don't have hundreds or thousands of stations working each other.