Let me put it this way, I don't know about you but i'd rather have a PC that performs great rather than a PC that looks pretty and has quite literally half the performance.
An ROG theme is great and all, but the ROG motherboards are stupidly expensive and don't offer good features over any other mid range options apart from fancy lights really.
Strix 1070s are also expensive to ship to Aus through Newegg hence why one isn't included, its simply the best you're going to get for your money, and its still a black and red theme.
How often are you going to be staring at your PC really?
I have a tempered glass panel, RGB cooler, graphics card, LEDs, the lot!
And the only time I really look at it is when I boot it up or shut it down.
It's $1700 AUD for crying out loud, that's a lot of cash to invest into a machine that's all looks and no play, just sayin.