If you're talking about the provided template... yes they are limited.
but before cashing for the expensive-but-i-would-love-to-buy-for-myself FCS2 you can also have a look from google for the additions that can be made.
like new themes (some free)
also a Britt's magazine called iCreate is providing once in a while (don't expect each issue to contain any) some background and theme, and animation but also how to create your own theme, providing you have some photo editor (e.g. photoshop... that is half the price of FCS2 btw)
So just don't give up on iDvd that fast and shop around