firashelou:
well about the EEPROM it's funny that it has more cycles when you rarely need to change it
Not really. I have gadgets (presumably driven by microcontrollers) which let you make settings which it "remembers" when powered off. No doubt every time you alter the setting (for example, to use Celsius or Fahrenheit) it probably updates the on-board EEPROM. However the Flash memory for the code would be uploaded once in the factory, and maybe updated every 5 years in the field if a bug-fix is released.
Thus, having EEPROM be able to be updated more often than Flash is quite reasonable.