A few reasons really.

First I'm stubborn and dont like things to beat me and I prefer the rear catcher of the Diplomat for a home lawn.
To me front catchers are for long straight runs, rear catcher MUCH more maneuverable for a home environment.

And secondly I plan to downsize next year as I'm not getting any younger and need a smaller garden to care for and a Diplomat is better for that or I will just get a rotary and be done with it or even an electric and give my arthritic shoulders a break from pull starts

So to me right now getting this one working and mowing my Santa Anna till I sell then look at what I need for the new home