In my opinion, when it comes to loudspeakers, those that possess the necessary dynamics and instaneous swings in volume, for example, horns, tend to sound far more agressive, brash, and threadbare than real life, while those that can reproduce the proper timber, liquidity, relaxed nature, voluptuousness, or flow such as electrostatics (which often overshoot the mark) are woefully inadequate when it comes to dynamics and being able to reproduce both the suddenness and power of the real thing. Typical cone/dome speakers fall somewhere in the middle of those two, determined mostly by their crossovers and/or their drive units.
Trelja,
Your point about horns and electrostats is valid. The fact that cone/dome speakers fall in between may explain why they are the most successful and popular form of speaker. To me the closest you can get to the dynamic realism of live sound today (with a quality that approaches the timbral accuracy of some electrostatics) would be ATC's but I would agree with you that nothing out there is perfect. I would add that most people are not looking for "live" type sound at home and prefer something much more relaxing.