Oh, all of the others may say they are qualified to counsel on carpet matters, however I am the only CERTIFIED (or is that certifiable) Carpet Counselor. So the others input matters little.

Actually, I would be proud to have anyone of the guys who have given input here on your carpet conundrum on my team. They would do well.
Again for what you are having done I don't think the price is out of line.
Brad's theater is so nice and simply looks very classy, and since his "works" so well I think you could follow his lead, use the same carpet and be very happy.
Earlier it was mentioned about how the different blacks might look together which is a excellent point, if you use the same carpet then that issue is moot.
Regards,
RTROSE