You always pay more ala cart than for the complete package. Never are you going to get anyone to breakout each component and sell them to you at the equivalent bundled price.
My point being that if they sold the SP5 for say £850 with a touch cover included, instead of just £800 without, then I'm £50 out of pocket for an accessory I have no use for. I know it goes both ways, but i've never been an advocate of bundling extra items at additional cost if I don't need them, I like to have a choice in the matter and not end up with surplus accessories. Every review harps on about how the SP should have a typecover included by default, I fully disagree. Just my preference of course.