That is a great comparison...brushless mt4 to brushed revo price. And the MT4 outperforms the BL REVO.
I disagree about one thing though. I think the Mt4 handles much better on road especially speed runs. It tracks very straight and stable and stays much more planted at high speeds. My revo was always more unstable, squirrely and flippy.
In my opinion the only thing that the revo is better at is steering. It can turn a much tighter turning radius . It also turns much better at speed.