Found an ultra vac bagger for sale that will work with my 60" tri-vantage deck. The bagger is in good condition, I believe it is a 2004 model, has three bags and the seller put a new belt on this year. It was used commercially. The seller is asking $900. How much it this model new? $900 seems high for a used commercial unit, i feel like I have seen them go for less on this site. What do you think? Is this a fair price? I need to give him an answer by Saturday.