I said the decision was one. Discussion rarely is.
Unfortunately it is the biggest deciding factor, and while you mention wider markets you're missing the point that this is a niché genre. Heck, it's a niché game within a niché genre.
Space doesn't generally sell well. Really complicated space games rarely do (Battlecruiser, anyone? Though that did have quite a few other problems too). X is lucky to have it's success, because despite being a fantastic game, it's at an automatic disadvantage when it comes to securing funding and publishing.
Ebyl Vampyre wrote:I wouldn't mind an example of how allowing limited jump drive use within sector could seriously unbalance anything but trading, though.
With fighting it seems to me you can already jump out of combat, so that would remain the same. At best you could maybe jump in closer to a target than before, but I'm not sure how that offers you any great advantage of the AI. There's really no competition there to begin with, so I'm not sure what you'd be changing.
You may not get competition from the AI, but a lot of people do.
Let's take just one example: You're in a fight, you're shields are about to collapse, their's are pretty low. You engage the jumpdrive and select a position only 1km behind the enemy. You pop out of existance and appear right behind them, ready to fire. That's a total inbalance, and would require fixing. That affects humans too.
The AI generally wouldn't get access to the drive, most likely, in order to maintain balance for the less combat-orientated players.
Another example is getting reinforcements through the gate, but the gate's 200km away! No matter... engage their in-system jumpdrive and they'll be right with you. The AI most likely wouldn't get such a luxury, particularly in multiplayer where everyone else's actions are also being tracked.
Besides, trading would be affected. A fair few players do make millions out of manual trade - that's the beauty of X.. it's not just for flight jocks, and it's not just for pencil pushers. It's for both, and all inbetween.