Count me on the sour bandwagon as well. My tastes run towards mildly sour or slightly tart like Belgian Rodenbach, Petrus, Duchesse De Bourgogne or some of the Beers from the Breuery in California.
These beers run $10-$20 for 750ml bottles and I want to see if I can make my own. Its a long term project, I expect my first one to take at least 18 months.
But if someone wants to make a PBR clone, Session IPA or any other beer and enjoys the brewing and drinking it, that's great, to each his own. God wants us to be happy and wants us to have beer, so Cheers!