That&#x27;s a good point. One wild thing about MOS is that it&#x27;s also &quot;natural&quot; to create gates such as AND-NOR or AND-OR-NAND or other even crazier combinations, as long as the last step is inversion.  Right now I&#x27;m looking at a Z-80 gate that is  three triple-input ANDs, all NORed together, and this is a single gate. Also, a pair of OR-NAND gates is a convenient way to make a latch. This may be more than anyone wants to know about gates :-)