Too many of my fellow officers are having to wear these asinine covers on their forearms (because long sleeves in Savannah summer Does Not Work) because of our newly-revised tattoo policy. One of them was trying to get back into the Marine Corps, and is having to jump through all sorts of hoops, because of the Corps' draconian policy.
Tattoos are a great way to show off an aspect of yourself, so long as you remember that the folks who will probably end up signing your paychecks may not have the same views as you.
tl;dr, I agree with Shannow and Fnord, with some personal anecdotes.