So I've been thinking about it, I have been on these message boards fairly frequently for the past few weeks, maybe even over a month, and i don't think I've ever seen anyone suggest multiple hatching slots. Or even a faster cool-down would be nice
What if there was a side quest added at a pretty high level (let's say, 80, just for an example) where the cat in the Hatchery (his name evades me right now) needs our help. He's created schematics to add something to the hatching machines but he needs parts for it in order to complete it. So maybe we could go talk to a few people and then fight some enemies in Celestia for a drop. And then when we come back and complete this quest, boom, 2 hatching slots! (or the cool-down time is now cut in half, but I'd prefer the first one )
Also, if people are gonna say that's a lot of gold to go through quickly, well if you have the gold to hatch twice, why not?
John RavenCatcher - lvl100
John StormWalker - lvl95
John DragonPyre - lvl58
John FrostShard - lvl63
'Bambi is my old name.
Now.. Now they call me Deer Knight.'

Isn't there a hatching elixor which resets the cool down to hatch again?

Members can already hatch 2 times a day because the cooldown timer is halved for them. There's also elixirs to reset the timer in the crown shop so you can hatch as many pets as you like as long as you have the gold and crowns.