Also, I see this year that you can get the 48-in. or 54-in. deck on either the Z425 or the Z445, as you indicated. That's a change from last year. I would say with no power bagger, go ahead and get the 54-in. deck, especially if you have a big lawn. If you ever do think about getting the bagger system, I would recommend the 48-in. deck because that blower does take some of the available motor horsepower away.