What makes it a pro instrument is the person playing it - not the instrument itself.
Spot on, Gary...you and I must have posted at nearly the same time.
There are advanced and basic players in the "pro player" category much the same as in the "home player" family.
Just because someone owns/plays an exclusive/expensive high end instrument doesn't mean that they are automatically an advanced player...in fact, sometimes quite the opposite is true.
Ian