Guys,
I looked at the 4000 series and the Boomer 3040 2010 model (not the Boomer 40 2011 model). I also made the decision not to go with a cab. While I love the cab, I just do not use the tractor enough to justify the additional cost. It looks like I will be going with the Boomer 3040 (one chassis size up like you said). I was able to trade my 2006 TC34D w/240TL FEL, 918H 71" flail mower (nine years old) and Meteor 68" Snowblower (eight years old) for a new 2010 Boomer 3040 w/250TL FEL (no cab - hydro model - not CVT model), one rear remote, turf tires, 84" Woods PRD8400 and 75" Metoer Snowblower with hydro chute and wings (dealer will make the plate wings for the extra inches of the turf tires) with a $13k difference. Unfortunately, the JD dealer was at $12,780 for the JD 3720 without any implements or added remote and could not come close for a 4120. I real like the JDs and I think they are great tractors, but the deal just was not there. Maybe I can get one next time. Thanks for all the info and help.