I would measure the wall where the coke stool and love seat are. If you can fit 3 games comfortably with their backs against that wall as it currently is I'd leave the side wall alone. If you could squeeze 4 pins on that wall by moving tye side wall 11 inches, then I'd move the wall. Basically if 11 inches buys you another pin in your space, then it's worth it in my book.
That's my 2 cents.