Where would be the fun with auto-wing sweep, for instance, you wouldn't be able to laugh at your oppo trying to tank in 45 wing because they forgot to sweep them forward on the pre-join checks. Or what about the opportunity to select 67 wing and pull to the limiting alpha in an attempt to use aerodynamic braking to slow down when you've overcooked it on a tanker join....
The 4th wing position has also been alluded to, certainly gives you something to do while transiting the NAGA..