I have a very expensive electric/computerized treadmill.
However it's dismantled in my Garage. LOL
I last "walked" on it last March.... however I did get some excercise with it in November when I moved to a new house. I had the Movers put it in a spare bedroom upstairs - but then it seemed like it was in the way LOL so my brother and I got a real workout carrying it back downstairs to the garage.
Now that I think about it - I got a little excercise from it in April when I rearranged and organized the garage. I moved it by myself from one side to the other. LOL