I guess we are listening to symphony concerts without noticing the lack of clarity and dynamics. The brain is marvellously capable of filling in what isn’t actually there and ignoring what is but shouldn’t be. For those without a large room and massive funds, what we have for Hauptwerk will have to do. I’d like more speakers but there’s little room and less money. There is also a very real consideration and that is the law of diminishing returns. We hear logarithmically and I believe the same idea would apply to the difference between let’s say 8 and 16 speakers. A fellow who used to be on this forum had a huge number (60?) of speakers. He spent much time fiddling with the vast number of ways to deploy them and was always on the hunt for that little bit better result. That’s assuming your aural memory was able to let you hear the improvement (minuscule at best) from yesterday’s result.
It’s a shame to always be thinking it could be better if only. That’s bad enough with regard to one’s playing technique let alone having to add an added disappointment.