I think the reason for the recent surge in "lowballers" is the economy. So many people lost their jobs and cutting grass is fairly simple to do, anybody who ever has had a lawn has had to do it. You can get a used truck, trailer and home depot mower for cheap and call your self a landscaper.
I have a good friend who mows, solo and we worked out all his costs and found he was undercharging significantly. He didn't care, won't raise prices because he gets jobs with his. The Wal-mart approach low/no margin- high volume. Yet, he still works a part time job at UPS to make ends meet. SMH