Arc, I think all of your responses are weak. Now you are saying that results will fall into a range of expectation. Well, having a profit is in the range of expectation on a negative game. So why not help yourself to reach that profit within the range of expectation? That is what we are talking about here. If you have the discipline to cash out YOU can be the one within that "range of expectation" that includes a profit.
Do you see now, Arc? We agree with the math and we do not dispute the math. It is your own MONEY MANAGEMENT that allows you to be in the profit range of expectation that you talk about.
And yes, if you have the time and the bankroll you can do as you suggest -- keep playing for as long as possible until you have the win in the session as long as you have the discipline to know when that point is.
And regarding your comment about losing it all in one session -- well this is where you need to know when to quit. It's money management, again.
What you might be overlooking is those sessions when you have a big winner such as the quad aces or the royal when those big profit sessions can offset many sessions with small, limited losses.
It's money management, Arc.