If I am hand forming, what is the break-even point on purchasing a curb machine?

If you can pour as much as 20,000 to 25,000 linear feet (6,000 to 7,500 m) of curb per year, you can justify the cost of a new or used Power Curber, financing it over a 3 to 5 year period.  To pay for the machine, you build $1 a foot into the curb cost.  The machine will increase your production, cut your labor, and allow you to bid more competitively.