I have often considered going pro-audio for the home because I feel that there might be better value there and possible better sound.
Trying to mix and match pro and home equipment seems a little difficult though.  The cabling and connectors are different.  The voltages and impedances are different.  Pro-audio seems to lack the concept of a pre-amp, although there are mixers.  I can't seem to find a pro-audio DVD player.  If I use a home DVD player, then the connections are wrong to hook up to a pro-audio amplifier, and where does the volume control get handled.  If I want to do surround sound and I have active speakers, then how do the channels get split and where does the volume get handled.  I suspect for pro-audio, that computers are becoming the source.  However, are there external sound-cards that split the signal into 7-channels and allow digital volume control from the PC.  Is this split analog only, what about with active speakers?
As for speakers themselves, I have the following thoughts.
I think as a general rule, horns are more dynamic, but have more distortion.  Sometimes, I here a sound-re-enforcement type speaker up against a wall and just think that dynamically these put home speakers to shame.  However, when listening to a PA speaker out in a room, I am often amazed at how annoying the upper frequencies really are.  I really think the horns shine against a wall or in a corner.  Must be something about the sound dispersion.  And interestingly enough, the pro-audio speakers often have 12" or 15" cones, where most home-audio equipment uses something around 6.5".  I think this again leads to greater dynamics at the sacrafice of distortion.  All the sound-reenforcement speakers look like they are designed to be thrown around and survive a hard life.  They are not pretty.
Then there are the small studio monitors.  I don't think these quite work in the home either, although I am not quite sure why.  You need to listen further away than they were designed for.  So you need a sub-woofer to help with the bass.  I have oftened wondered if the cross-overs have more notch filters and stuff to really flatten the response, but at the expense of distortion.  I think they are usually 4th order which might lower distortion, but increase phase shift.  The best ones I have heard are Genelecs, but they are expensive, so there is no value proposition there.
Well, these are all sweeping generalizations, and there maybe exceptions.
I think I might like a passive solution though with the U15s or something like it.  I am just not sure.