Nothing is wrong with BG's. It is what it is, and has gotten better over time. It just isnt for everyone. Hearthstone is becoming a platform with lots of ways to play. Trying to play all of them will have you living in front of your computer and likely shelling out lots of cash. Personally I dont play Mercenaries and seldom play duels. I put a limit on my spending and Mercenaries is a money pit. Duels is ok, it just isnt my favorite mode.