I have been thinking of this theroy this spring/summer. I have switched some of my large open area mowing from Z's and straight lines to the 455-d and being done in 20 minutes. Ex: Open 3 acre lot that we mow. Run the Z which is a 52 deck takes a while but looks nice, suddenly it is costing me money to make the lot look good. Now looking good to me means alot. I am sure you guys can relate. But the client doesn't care or seem to care. The pay is the same. So now I have 3 - 455-d machines - one machine mows that in 1/2 hour and my money is better. Sure machine is bigger, cost more but does the ends justify the means? I lost a condo this year to a low low lowballer. We had that place poppen. Always looked awesome - now, there is no rythm or reason to the mowing. Grass on the street, some on the walks etc but one told me well he is $5 less / unit and the grass is getting cut. So where does one draw the line. Where is the ceiling in this business? I think I am there from what I have witnessed thus far this year. Now you may wonder why a 52 deck vs a 455-d. Well most lawns are 5-2 acres. Commercial are 20K to 40 acres. So the 52's work well for me as an all around general use machine.