Looks like you can currently buy a 72" King Kutter tiller, including delivery to your residence (no tax either), for $2070 from Blaine's Farm and Fleet in Wisconsin. That is a very good price for a quality tiller, including delivery. Weight of the 72" King Kutter is 750 lbs. I have bought from Blaine's before, and they are truly a first class company to deal with.
Agri Supply has a 72" gear driven "tillovator" for $1495 plus shipping. I know nothing about the quality. I do not know the weight, but I suspect it must be lighter than the King Kutter. My experience with other items purchased from Agri Supply has been excellent.
I have a 60" King Kutter, and I like it. (the paint job is poor)
I like Titan stuff also, and their prices are always great, but they do not have a tiller yet.