i found bgs to be a good source of gearing once i had hit 70. Now I have a number of epics up my sleave im finding that i can start doing heroics with not too much of an issue now. After I get my epic flyers ill start doing heroics more, my repair bills are still to high for a couple of badges.
I actually enjoy taking a shaman or 2 on a pug if i cant get them all into a kara raid,
But the thing about BC is there are just a number of different ways of gearing characters up, it depends on what you love about the game.