ok boys, i'm done arguing back and forth. I think i've stated my point clear by now.

This is for the OP (if he's still reading this thread!).

OP, by now you've heard "less rolling resistance = free speed". Well, no it's not free speed. What you're looking at is paying for more then DOUBLE the price for a set of tires, for 1 second of speed in a kilo based on a controlled test. Real world just riding around, hard to say if you'll get that 1 second or if at all.
But the price you pay is a real one, guaranteed to happen. Ultimately, less rolling resistance, in this case, is not free. There's a $$$ cost.

Free speed only is free if you pay for another set of tires at the same price and get to go faster. That's when it's truely free speed.