Yea 4, but if i have to survive, those 4 buffs will be replaced. Your Fort will still be there.
Strength of earth/stoneskin which are both buffs, can't have them both same time, if i need to put tremor/stoneclaw(mandatory pvp), i lose the buff
Flamethong is a buff, all other fire totems are dps totems, elem got a better flamethong as a talent, so they put the dmg totem. Only resto need it.
mana spring/totem of tranquil air. we kinda need the mana one except if there are paladins or other shamans in our group. If we need a quick mana boost, we scrap the RAID buff for our mana regen, than can put it back up. And i loose healing stream totem, which is a really great healing "spell"
windfury/wrath of air if i have to put grounding totem (pvp mostly) i lose the buff.
Remeber that said buff is lost for the entire raid/pvp team. Remember that all those buffs are all passive buffs from other classes, they put it on, they forget it during the time it is there. They never have to get it off to survive.