I haven't seen all of Buffy the Vampire Slayer, I just got the Season Three DVD last week, and UPN has just started broadcasting in Toronto.
That said, and given the uncertainty about another season, I think this will be the last season of Buffy the Vampire Slayer. Why? The Seven Deadly Sins. Seven Seasons, Seven Big Bads.
Since I haven't seen all the seasons, I'll just list what I think is the deadly-big bad combo:
Season One: Pride
Season Two: Lust
Season Three: Avarice / Greed
Season Four: Gluttony
Season Five: Envy
Season Six: Wrath / Anger
Season Seven: Sloth
Why Sloth? I think Burke summed up this season when he said :"The only thing necessary for the triumph of evil is for good men to do nothing" isn't that what The First Evil has been doing all this season?
Article comments
1 - Bill Sherman
Season Four's Big Bad was Adam, the demonoid creation of Professor Maggie Walsh (who taught psychology at the local college). Unless the unbridled acquisition of knowledge is a form of gluttony, I'm not sure this 'un fits into the equation . . .
2 - Chubby Pecker
I think unbridled acquisiton of knowledge sounds like gluttony. Plus Adam was cobbled together from more and more parts, always seeking more.