It's sort of fascinating to me that so many people bounced off Infinite Space (although many liked it). I tried it out during the free weekend a little while back, and I found it perfectly competent, and perfectly unengaging. I can't imagine how frustrating that must be for the designers. After all, there was clearly some considerable effort to include colour. I thought the art for the various factions was quite lovely, and some of the faction descriptions intriguing (Horatio, a race of clones of one wealthy person- brilliant!). The planets that made up a system could have all these different properties- this one plants with interesting properties, this one has a strong magnetic field and that one has unstable geology. It made a difference in game, in terms of some numbers going up and down. And yet... meh. Yet Sword of the Stars, which has even blander planets and some similar systems in game can hold my attention for hours at a time, and I really feel the differences between the races.
It seems so arbitrary, and even the panelists seemed to have a hard time nailing down what the crucial element really is.
I was reminded of something from an earlier cast about FTL- that when we daydream about space we imagine ourselves as adventurers and spaceship captains- Han Solo and Picard- but never as some nameless galactic emperor. Yet so few games give us Firefly episodes and so many have us pushing economic sliders.