I am very old school and remember, as do a few others in this thread, that the idea of selling frags was viewed with scorn. If you were fortunate enough to have coral growing well enough to be in a position to frag it, you did so and happily gave it away.
For me, there are really only 2 reasons to frag a healthy coral:
1) because is so grown in it needs to be pruned for the health of the colony or a neighboring colony.
2) Because you want to share some of it with a friend.
The LE designer collector craze is a corollary hobby to the one I know and practice, and sadly ( to me at least) it is now the dominate part of the hobby--vendor and $$$ driven. If that is what gives you enjoyment, it is fine with me, but some of us prefer to see how beautiful a fully grown colony can get and how a tank full of fully grown colonies can pull together into a unfired whole rather than worry about the market value of the individual pieces or individual polyps.