I'd love to see a tour for small active speakers (not desktop or iPod speakers). I'll try to come up with a decent list.
Years ago I had a chance to A/B Paradigm Studio 20 (small 2-way standmounts, $800/pair) versus Paradigm Active 20 (same but with built in amps, $1,600/pair). There was no comparison. The Actives had noticeably flatter frequency response, were hugely more dynamic, and produced unbelievable amounts of deep bass.
It was an epiphany for me.