Hatunen writes:

What ae you saying? That you an't afford the jet software for the
sim?

No, I'm saying that actually flying a jet for real is extremely expensive,
which is one argument in favor of simulation (equally applicable to all types
of flying, actually).

I'm not sure. I've forgotten. Is a commercial rating required
before you can qualify for an ATR?

You can have an ATPL for one type of aircraft, and a CPL for another type, if
you want.

Essentially, you can have one of the following types of pilot license (in the
U.S.):

Student
Sport
Recreational
Private
Commercial
Airline Transport Pilot

and each of these can apply to any combination of various aircraft types, such
as single-engine land airplane, rotorcraft, glider, multi-engine seaplane,
whatever.

By the way, you don't need an ATR to fly a jet.

Or even an ATPL.

I wonder if John Travolta has an ATR...?

He has a 707 and I think at least one other jet. John Travolta is a private
pilot, single and multi-engine land airplane, with an instrument rating--not
an ATP.