I am thinking of switching to 21" mowers like Justmowit. It seems to have alot of advantages. For example: No Flat Tires, One Blade per Mower to Sharpen, Cheap, Does not mess up Turf, Can cut in rain, Mulch sidedischarge or bag all with one mower, Can use a small truck with no trailers, customers hate big mowers and many more. Disadvantages: take longer to cut cant cut as many in one day. But if i do like Justmowit i could run 3 man crews charge less because have smaller trucks which will save me on gas and truck payments $300 dollar mowers compared to $6000 mowers and can have more back up mowers since they are so much cheaper if i got a $3000 mower i could proably only have two mowers. What do you all think about this.