Let us say that I start with $50 at a $1/$2 limit hold'em table, and then I find myself up $50 from where I started.
1) Quit and go home: doubling your money is good enough.
2) Continue playing at that table: if you made that much, you can make more by staying longer.
3) Move to the next higher limit $2/$4: half of my stack is not my money, lower risk now to win bigger money.
I am just wondering which approach works better in the long run, toward maximizing profit.