Personally, I've been saving some money (in the line of several
thousands) to make a complete mock-up of a stationary flight simulator
for an ATR-42 and ATR-72.

Why? Pure fun I guess, plus it's a great way to get people interested
in aviation. If you are interested in seeing what can be done using
just flight simulator as a tool take a look at a company called project
magenta (google it to find their website), if you were to add a
hydraulic system to what they do it could be considered the same sort
of full motion simulator I did my Dash-8 training on.