the only thing JBear is that there are people making a living off just breeding dart frogs. I know a few of them and others that live off what they made in the hobby as far as frogs, bugs and supply sales go.
I do agree that a sale for no other purpose than to make a buck is not needed when there are many hobbyists out there that will do the research before buying. In the last 11 years I have bred and sold a few thousand dart frogs with every one being sold under market value or below board prices but I have had waitlists for most frogs or other means of selling them to qualified herp shops but not everyone is that lucky. If your going to sell them on the boards why not let them go at market value? Underpricing them creates issues in the long run and can drive some species out of the hobby while others are looked at as cheap beginners frogs. I find it funny how the average new hobbyists gets on the boards and posts want ads for sexed or proven pairs before they have even gotten the experience to care for the frogs they want to breed them. I see it as only one reason, to make money. Somehow this hobby turned into a collaboration of many small business's trading frogs back and forth.
To under value a frog and flood the market with them by selling them dirt cheap only hurts the frogs stability in the hobby. When I got into this hobby there was no classifieds full of sexed or proven pairs. you had to do the work yourself.

Michael