User blog comment:Nethrim/A Dino a Day/@comment-178.2.63.219-20120607144139

For other decorations you have to save coins to invest and get return later; with hatched dinos you invest how often and when you like and get something back right from the start. If you decide not to sell them before lvl 7 you make profit anyway.

I've been using this strategy for some time - hatching rare 1s and selling adults (not every day - but nearly). It's nice to have a steady income and always some cash available, according to your needs/challenges. You can collect taxes anytime, which helps for the chain bonus.

Just my two cents... (stoner11, lvl 50 - but still on pyramid challenge, 19 habitats)