If you ever get to the point where you want to invest in some training shoes, don't buy overpriced shoes. Get a pair of:
Chuck Taylor Converse All Stars
The benefits are clear:
-Stable-Cheap-Flat sole-Looks good to almost everything
The chucks are affordable and provide stability for the whole foot, but the best part about chucks is the absolute thin flat sole. The only better thing than working out in chucks is working out barefoot. You will look for a flat sole to get a better feeling to the ground while doing excercises like squats and deadlifts.
This boots are getting used since a long time in bodybuilding and powerlifting circles, because of their benefits. Sure you could invest in some 250$ lifting shoes, or invest 80$ in a shoe that provides the same features.