Guys, the local Ditch Witch dealer loaned me a DW 100 sx the other day as a demo. It seems to me that the machine is overpriced ($7800 new) and also that I could find something that would go on a three point hitch. Does anybody know of a vibratory plow attachment for a three-point hitch? If I can't get one on a three-point, I will probably get a used unit if possible. Also, what vibratory plow unit would you recommend? Thanks for your help.