I still haven't purchased surround speakers. The Omni 150s got vetoed as surrounds due to size and where they'd need to go. I have to admit that I agree.
I'd love to get Omnican 5s, but at $200 each, I have a hard time justifying them. Crutchfield has i-6Cst--the stereo version of the i-6C--for $85 each. They aren't omnipolar, but they may work out. I'd get two of them, and only connect one channel to each speaker (essentially using them as i-6C).
Any opinions on this?
FYI, my ceiling is vaulted, so the speakers will be aimed toward the back of the listeners. Because of that, omnipolar speakers may be unnecessary.