There is very little difference between a real casino bj game and playing against a simulated game,
assuming the simulator is a true mirror of the bj game you play. You are playing bj even though the money isn't real. The cards don't know the game is simulated.

Could simulated play end a losing streak?
Could simulated play end a winning streak?
Could it get you into the long run sooner?
What if you only go to a real casino when you are winning on your simulator.

Someone in Vegas with easy access might want to test the above and post your results here.