Ironbark, fortunately a lot of scrappies are cunning enough to know they can often get more for a mower or genset or similar by reselling it rather than scrapping it. I know there is a scrap guy over here (lost his number but I know generally where he is) has a pile and anything of value machinery wise gets put in this pile and either he and the yard guys take them home, or they sell them off cheaply.
Another scrap place I asked when I went to drop some electric motors and they said they have an arrangement with a guy that will up to $15 for anything half decent and $2 per trimmer or stuffed mower.
There is still a lot probably going into waste, but not as many complete mowers as one may think.
Alloy decks may be a different story - but we have more steel over here
