Upgrade Habitat Gold?

[Gippie]

I see You can upgrade some habitats with a lot of gold. (500!!)


Why should I spend a lot of gold to upgrade an habitat? What do you get more when you do this???

[JustKay]

You get a prettier habitat (you can see it in the market), and the habitat holds 4 dragons and 10000 coins

[DragonMaster128z]

To tell you the truth I wouldn't buy these unless you are having a habitat problem. :/

[Gippie]

Is that all??? I was hoping if you upgrade a habiat this way, your dragons can reach a higher level such as the ones in the battle arena. For example level 20 instead of the maximum level 10!! This would be a lot more fun.
Or is there another way to level up / evolve your dragons tona higher level?