I keep my wife informed every step of the way. I demonstrate what it is that could be better and let her know what options are available to fix it. I always take her audio shopping with me. Case in point: subwoofers. I have huge room mode issues which I could easily demonstrate to her. One attempt to mitigate this was to bring in the second sub, which she liked very much. But while it sounded great, it didn't really do much to tame the room modes. So I explained what the SMS-1 was intended to do and got one. I tuned it with just the SVS, which gave a much flatter response, but she didn't like the effect as much with the two subs. She actually requested that I go back to having both subs in the room with the SMS-1. I figure this was because she understood and had some experience with the effect that two subs could have. She is developing her own expectations for the system and has no problem with whatever upgrades are needed. She is personally invested in the system and appreciates each little improvement along the way.