Haha. How stupid. This thread was pointless, cause I can see you back here in about a week or less.
The series didn't die because Mary left. She was hardly even an entertaining character the majority of the time she was in there. Sure, she was interesting when she first arrived and was entertaining on her birthday, but other than that she just moped around, bitched about people (like people complain about Craig doing) and kept on moaning about wanting to leave the house. WOW WHAT A VALUABLE ASSET SHE WAS.
I admit I did like Mary and was sad to see her go, but at the end of the day (Gah! They're affecting me!) she was less entertaining than a lot of other housemates, so the series was far from surviving on her back, I'm afraid.
Besides, I'm sure this is the reaction received when Kitten got kicked out last year. But there were still plenty of strong characters to keep the series running until the end and make it one of the most entertaining ones to date. I think the same thing will happen with this one.