Thanks DJB!
Installing a concrete driveway costs roughly 8-10 times what a new gravel driveway costs. Taking your 600' driveway for instance (for a new driveway). Even if I had to come out and grade for a day, I could place all of the gravel the next day. That's only two days with the cost of material and one guy on one machine. If you wanted geotextile placed before the spreading gravel, I might need a laborer. The installation of concrete requires the same amount of grading and the concrete itself is roughly three times more expensive. Now add in forming, reinforcement, finishing and all of the handwork involved. And don't forget the workman's comp insurance the contractor has to pay for all of those employees...It gets expensive! I know, I did it for many years before moving here.
Since you already have a tractor, buying a pretty new land plane grading scraper and spending some quality seat time starts to look pretty good. Heck, even throw in a new top-n-tilt setup and make it even easier.
And yes, as far as work goes, I hope we're in for a change if you get what I mean.