Don't know it's been mentioned or not but you might want to look how each tractor reaches today's Tier 4 emission standards. There have been a lot changes over the last few years in how different companies have done this and they still seem to changing. I don't which way is the best way but since everything is so new there's an uncertainty there. Enough for me to forgo the buying new route and I bought a used Tier 3 tractor instead. Some of the ads I seen in publications now even advertise having Tier 3 tractors as a selling point.