How niche would height channels be ? Dedicated cinema rooms maybe. Domestic living rooms ...highly unlikely IMHO.

At the Bristol gig this year it was suggested by a well known HQ chap that multichannel
Sooloos was a nice-to-have but unlikely as the was not enough need. Too niche.

An additional question might thus be:

Would you like to have height channels or MC Sooloos?

Rgds,
Nick