If you haven't done the rear diff fluid, I would recommend that. Tranny/gear fluid? I've done them both this year, but I bought mine with 42k on it, and I drive it hard, so just wanted to be sure that it had new stuff in it, not sure what the previous owner did or had.
The cabin filter should be replaced more often than 50k, I believe. Haven't done mine yet, keep forgetting to do it. I bought a K&N engine filter the day after I brought my car home.
2010 Stock IBM 2SS/RS
I found $80 in my jeans pocket. The kid in me said "buy nerf guns and candy!" But then the adult in me said "buy vodka, nerf guns and candy!"