I get the impression most people don't like tow behind aerators. I am looking at doing leaf cleanup part time this fall and thinking about getting a tow behind aerator to offer as an additional service. I know with tow behinds you would have to run over the property twice but if it is behind a ZTR, is it really going to take much time? I am looking a used billy goat only used one season with asking price of $1200. I know that is a professional quality but wondering if I could go with an Ohio Steel professional unit http://www.northerntool.com/shop/tools/product_200418157_200418157. I know the Ohio won't last as long but I figure it is a lower entry point for a service that at most Ill probably do 10 yards this fall. So I guess I'm really asking two questions. 1) If I am willing to run over yard twice, is there anything wrong with tow behind? 2) Do you think the Ohio Steel unit I listed work or do I really need to be looking at the used Billy Goat?