I think 7 was enough. I don't think it got 'bad' towards the end, at all, I'm just glad they went out with bang before it did start to go downhill. Eleven or twelve series would have been too much, in my opinion. I don't think there's much more they could have done, without becoming ridiculous.
Have you watched Angel then? I haven't seen all of it but I don't think its a waste of time, (from what I saw) its a very good show in its own right 🙂
While I love BtVS and sometimes wish I could see new episodes, I think 7 seasons was the perfect number to end it at
What does Angel being on have to do with Buffy ending at all? I'm not seeing a connection there. It's not like someone said, "Well, we don't need to do any more Buffy because two of these shows is too much." They were on different networks, and had both been running together for four years. Buffy ended as a result of the same things that end most shows. People eventually move on. Sometimes it's the cast. Sometimes it's the network that pulls the plug. Sometimes it's a creative decision from behind the scenes. It happens to every show eventually. I think Buffy probably could have cranked out a couple more good seasons, yes, but it wasn't my decision to make and it certainly had nothing to do with Angel.
As much as I miss the show and the characters, I think that it was better that they ended when they did. We can remem ber Buffy, Spike, Willow, Giles, and all the rest at their best. I don't think that the show was on a downhill slide at that time, but it most certainly would have come sooner or later. I prefer that they went out winners.