Yep once people have a breeding pair of frogs they generally kep them, you see the trick with frogs is to grow them from morph to adult frog, it is easy to grow them from tadpole into morph
you can imagine that the average frog lays 1000-2000 eggs, providing your husbandry skills are right it's quite easy to have a 1000 survive, 1000 little frogs eat a lot, so someone with 100 red eyes I'd imagine wants to sell them reasonable soon unless he/she wants to look after them for ages. I genarally sell my frogs for $5.....................