Rooms are frequently discussed on audio forums I assume this one is no different, but no one ever accused philes of being good listeners.
Big room, reflections farther from the side, feels spacious. Small rooms, reflections arriving close enough to main sound, more focused. If you want spacious, put a 2nd pair of speakers closer but along the wall (wider angle to you) and feed them a delayed version of the main signal (get rid of the bass). If that is starting to sound like one of those spatial modes on your home theater AVR, it is. It is fake, but so is your spacious setup. If that is your enjoyment, then make the most of it.
The first rule of phile club is no one talks about wasted money. Of course most of the money spent is a waste due to limitations mentioned. You are not supposed to say it out loud, no more than you are supposed to say a lot of the money is spent on very expensive single function equalizers. They often come packaged looking just like other pieces of audio equipment.