I too run my different kegged beer styles at the same temp and PSI. I'm not enough of a purist to go to the next step.
But I do appreciate good beer well enough to keep my keezer in the lower 40's, and not 32F.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10