Great television series that were cancelled

For the past couple of years, I have notice a trend of great shows being canned due to low viewership.
It gets really disappointing to have your favourite show cancelled and havng to watch a speed up abrupt ending.

My list of my favourite shows that were cancelled:

Ugly Betty
Year 2006 to 2010 

Paris Hilton Perfume Can Can 2007

I have finally saved up and got my hands on this wonderful perfume which I had previously given to a friend as a gift for her birthday. It was on 20% off at BHG and almost a steal.
I simply adore this perfume, it is sweet, fruity and last for many hours and smells woodier when it dries.