Great finds Converse. I agree with Norm, it can get out of hand.
I drew the line when I filled up one shed.
Then I built another haha.
My advice (although I probably not the best person to give it) is not to start getting any of the elcheapo 4 strokes and stick with good brands like Victa, Masport, Rover.
I am now (trying) to stick to Victa 2 strokes. It has now been 3 weeks since I bought a mower (2 stroke Pace), and I am beginning to get a nervous twitch haha.