I gotta go with chessrock on this.
it's personal preference. y'know, like religion or something.
for me, i'm looking to use the twinQ mostly live as an instrument pre with some light studio usage. Having something that can preamp, eq, and compress in 2 rack units and sound good (from what I read) is worth a fair amount of change to me. Otherwise I'm looking at $400 for a moderately decent pre, maybe another $200 for a dualchannel EQ worth more than salt, and another $250/$300 for a vla pro compressor, all the while hauling around literally 3x the gear. Yes, the train of thought is present that the more things a unit can do, the less properly it does each thing, but I have it on what I take to be pretty decent word that they're a solid investment and produce a quality sound.
Because I don't have pres I trust on stage yet, and I'm not going to buy a $2/$300 preamp, which would get me much lower quality imho, so I can save $400 or $500 to buy a quality EQ and a quality compressor. One package, bit higher price, ~half-Avalon quality, the math adds up for me.
Thats your perspective, and you're entitled to it. But I'm sure you've done many things in your recording career that I wouldn't agree with, either. Live and let live.