Originally Posted by
pik80 
So I have to buy an enormous case that has twice as many drives as I need, two processor which I don't need, two optical drives which I don't need, and more expansion ports then I know what to do with? I'll pass.
So you want exactly what you want, screw everyone else's potential use cases?
You can have that, piece of cake. Unfortunately your use case seems to flit between reality and fantasy (as well as good and bad), so you're in a bit of a pickle.
You need an internal back up drive. Off site storage is fine (I have this) but I need to have two back ups for my work I don't feel comfortable with only one.
That's good! I've heard myself that having three drives in parity—at least one off-site—is the "only" way to be safe. But you certainly don't need an internal backup drive for the computer to work. That's nonsense.
And you certainly don't need an internal backup drive. Time Capsule or a hard drive connected to an AirPort Extreme works just fine. No desk clutter.
I can't believe we still make computers that have one drive in them in the year 2013.
I can't believe you don't understand that two internal drives isn't necessary.
The fusion drive doesn't provide the back up functions I need.
No, and I didn't pitch it as such. A regular user would be confused as heck if he saw this:

"Where's my stuff?!"
That's why the two physically separate drives of Fusion Drive appear within the OS as one drive icon. They don't need to—the tech would allow them to appear separate—but they do. Because Apple's about simplicity of use.
Bit of humor: all of my drives are internal.
I have externals, but these are all in.