don't think I can ok that one. if a sim is built for "average" (usually much less capable than "above average" pcs), then they will have to code the sim to be less than what it ought. a new sim should be built for "tomorrow" so that we can get the best poss graphics if we're prepared to shell out the dosh now. those who want to sim on a budget can then just put the graphic sliders to lower res, and then as they update their rig over the years, they will be able to increase the detail. fs9 is like that now - you needed a "beast" to make it run well when it 1st came out, now even a modest rig will run it well. fsx is already heading there - as i've tweaked my rig (now 8gb ddr2 ram, 1gb ddr5 hd5750 graphics, quad-core 2.4ghz - not an icore, though), i can run with sliders to max and get around 12-15 fps most of the time. the 8gb of ram is only ddr2 800, but the amount has made a noticeable diff (was only 4gb before). so when i finally go thru to an icore 7 and 16gb of ddr3, i expect to be heading up to 20-25 fps even in fairly "dense" scenery (although whether that turns out to be true, only time will tell).
so, i say code to high specs, but allow for detail reduction. that way the sim isn't hobbled and obsolete straight out of the box. from what i understand, Outerra uses a much more efficient engine that FSX to start with, so that's good news for everyone.