Of course, everyone yells en-masse "PvP you dang fool!"
In that vein, I think that under the interface options, you should enable a "Faction bar", similar to the Exp bar. Instead of counting until the next skill point, however, it counts up your faction until a set number.
It should also be customizable (Default at 1,000, for obvious reasons), so that people can set it as low as 200 and as high as 10,000. I find myself constantly hitting H to see how much faction I have in PvP, and this would solve that, as well as be an incentive to keep playing.
Possibly, in that vein as well, a Fame bar, but let's not get ahead of ourselves
