getting back to "speakers", many years ago i heard a superb recording of "carmina burana" (the original early music) on harmonia mundi playing on watt/puppy 3/2's. the voices floated around the room with a purity and a "there-ness" i'd never heard before. so i re-iterate that transparency and resolution has been around for a very long while, although refinements have brought about more choices than just wilson audio or apogee's or quad's.
therefore, if you have a nice space to listen in and a Good Recording beautifully performed, then you have already spent enough money. or you can go down to the airport and stand behind 747's when they take off if you want a more powerful experience.