nola: I figure that if active was that much better, it would be an option offered by high end speaker companies. To the best of my knowledge, it isn't. We have an audio club in New Orleans and although I have never asked about active vs passive xovers over the past year, no one has mentioned using actives. I have heard spkrs well above Klipsch prices, including 13K Maggies and a 45K pair (forgot manuf). Surely the guy who paid 45k for a pr of spkrs can afford a K or 2 more if active is that much better.
NOLA,
Not only the cost to go with the active xover, but addittional two or three or more amps to pull it all together; now the guy who spends 45K on speakers is probably not using $500 amps, if you know what I'm saying.
Have fun in the other LA 
Rick
Tubes and Horns, Obviously
Heresy HBR1983, RF-7s, Bottlehead Straight 8s
Stromberg-Carlson ASR-333, Mac MC-250, Bottlehead 2A3