pmbuko, thanks for your response.
First issue - The woofs go up and down, the tweeters go left and right at angles, distributing the high freqs over more of the living room than just a specific sweeet spot. Forget about the lows, they'll go everywhere anyway. Result - no sweet spot but a better image over more of the room.
Second, M22s are excellent speakers, and cheaper (one less tweeter). But in my imaginary HT system, direct front dialog would still be well represented by a VP150, leaving the rest of the speakers to make a BIG soundstage.
Or at least that's my theory.
