So I'm still new to Bitshares and all, hence the post in the Newb section.

The first real question I have is why do I (or anyone) want to track a BitAsset? I can understand linking bitcoin to a fiat currency or gold to enable stability, sort of. If I want the stability of gold or the Dollar, why don't I just buy gold or the Dollar. Tracking bitcoin to a stable asset makes sense, but not to multiple assets.

Can anyone help me think through this a few steps beyond the obvious-to-me but I'm sure naive objections?

Thanks.