I have no idea. I'm back where I was last time I asked this. I wouldn't even mind a big rack or x2 in the room, if they looked good, and were constructed well. But there are so few HUGE racks (like 500+ discs) from which to choose. None of them scream, "buy me!"
I've been thinking about hiring a contractor to reframe and install new heavy doors in the 3 openings of my living room. If I do that, I'll have the same person do some sort of custom shelf system.
Until then, I'm either going to buy some cellular blinds, or another subwoofer.