The price isn't that much important. Majestic DASH 8 training version is 149 Euro and I think this is very affordable if you are studing the airplane in depth...

The price isn't that much important. Majestic DASH 8 training version is 149 Euro and I think this is very affordable if you are studing the airplane in depth...

 

The Pro should be enough for studying it in depth.

 

The Training version if you are studying engineering and Maintenence, or making a full-sized cockpit simulator of it, or intend to do instructing of other people with it (networked instructor station is the main difference between Training version and the Pro, and some of the engineering stuff, and modular displays so as to make hardware sit-inside cockpit replicas)