I have a 3320 and am considering either the factory canopy or the 4 point frame JD canvas umbrella that fastens to the rops. I've seen a picture of the umbrella but am not sure how it is fastened. It looks like about $400 plus for the canopy and about $100 for the umbrella. Shade to me would be about all I am looking for unless anyone out there has any more reasons for the canopy. I am also considering access and egress to the tractor. I get on and off alot and that is one of the reasons I did not get a cab (the other reason was that it was $6000 extra).