My current primary is actually not my first primary. I have switched twice to reach the conclusion of Sytex. My first primary was Xzayvior Onyx (Ecks Zayy Vee Err), a fox; my second primary was Nicholas Ryuu Sintari, a shiny Charizard. And as you can see, I am now Sytex, though I still have five characters in reserve in case I ever feel like switching, those previous two included.
So to answer your question directly, no. It's not odd, it's not even uncommon. People do it all the time. And uhhh, remind me to welcome you to the Pokemon world if you do make it a Ninetales.