One of the best posts I have read on this site !
I think first and foremost most breeders breed because we love and receive so much enjoyment from the horses and harness racing. Whilst we would like to try to break even, most hobby breeders expect to run at a loss but considering the enjoyment we receive consider the money well spent. Even if you do not own the mares foal you still enjoy seeing it win.
If you have a mare that is considered of low commercial value and you send to a top stallion and it does not sell well then you have nobody to blame but your self. But the best way to upgrade a family is to send the mare to the best stalions that you can afford.
Look at the pedigree of "The Archduchess"
http://www.harness.org.au/ausbreed/r...TOKEN=43357240
A Perfect Art mare with a record of 11 starts no wins no second 1 third and $ 1,770. 2nd dam 47 starts, 3 wins 2 seconds and 5 thirds for $ 11,534.
Most would have said on mating the mare with Christian Cullen you must be mad send the mare to the "doggers" . The Archduchess is now 15 starts for 5 wins and nine placings and $ 210,576.
Breeding is hardly an exact science and good horses can come from nowhere.