So ... we assume the average baddest puggy we can find has a DPS of 750. Not too different from some of our guildies when we started getting heroic teams together (*cough*Kalis*cough*).
That is still bloody 750 more DPS than 4 manning it. Besides.. with two newly dinged level 80s we really need all the help we can get in a normal ToC. Honest. Especially when it's the tank and healer.