Here you can see the new Base from behind.
You can alternate the height, and the disposition of it, so you can have different types of Presentation or make a overloaded Model a little more balanced. (Like the Back Heavy Freedom Gundam.)

Oh, I have ordered the dark grey one, because at this Time it was the most cheap one.
There are many different ones in different colors and shapes.
There are even some party related ones, like a special one for Zeon, one for the ESFS and even one for Celestial Being, from Gundam 00. (And more.)

They are all different in price too, so you should look what you can get or what you would have. Sometimes you can get a cheaper one together with a Model Kit and don't come over the taxfree sum. ^^

But which model whatever you have, it is always worth a base for this to have.