I agree with d-glitch's comment above. For small quantities of boards it makes no sense to buy equipment to make them. You have to buy copper-clad that is more expensive than a finished PCB, for starters. Then for the etching process you must deal with noxious chemicals, have either a process camera or use special high-density toner to make masks. And for the milling process you end up with a board that may work, but looks like what it is ... a one-off custom that is just barely good enough for a prototype.
I deal with AllPCB and their price for small quantities of boards is very reasonable. They do boards 2500 mm^2 or smaller, quantity 5, for $10 with free shipping and 24 hour lead time. It would take a long time and a lot of boards to break even on a $1000 PCB mill at that price. With about four day turnaround for larger orders, they can supply anything but an emergency. And as d-glitch says, if a quantity of PCBs is required, it is rarely an emergency situation.
I deal with AllPCB and their price for small quantities of boards is very reasonable. They do boards 2500 mm^2 or smaller, quantity 5, for $10 with free shipping and 24 hour lead time. It would take a long time and a lot of boards to break even on a $1000 PCB mill at that price. With about four day turnaround for larger orders, they can supply anything but an emergency. And as d-glitch says, if a quantity of PCBs is required, it is rarely an emergency situation.
http://www.allpcb.com/setinvite.aspx?inviteid=32951&url=https://www.allpcb.com/