large scale grouping being bad has been obvious, look how it has evolved:
EQ: 72 in raids, 6 in groups
DaoC: 40 in raids, 8 in groups
WoW vanilla: 40 in raids, 5 group
WoW BC: 25/10 man raids, different content for both
WoW WoTLK: 25 or 10, same content for both
what i see next...