In my opinion it will always be 9.
Very appropriate tagline. ;')
Always? I have seen (old) college textbooks that have Ceres, Pallas, Juno, and Vesta listed as planets. The number of planets has fluctuated with time and science. It won't be the first time that planets have been added or removed from the list. Are you saying that if you had been born a little earlier, you would still be asserting that there were only 8 or 11 planets?