Actually for the most part you stand a better chance if you fight it out than if you ran away. Running away requires a skills to maneuver out the one chasing you while switching power distribution between systems to keep your shield powered and then pump juice to the engines so you can get up to speed for the hyper jump.
If you stay and fight the worst that can happen is you loose your ship which you get back for free anyways. Unless you are flying a bigger expensive ship with lots of cargo there is not much to loose but lots to gain by practicing the dogfight. Sometimes of course you have to make a run for it if you are outnumbered and what not but try and fight it out, you will be a better pilot by learning the skills to dog fight.
Even if you play single player when the final game comes out the npc pirates can pull you out of super cruise to scan your cargo. If you carry something expensive they will fire at you, and if you don't have the skills to fight hem off you'll be sitting duck.