Second audio system in your house?

Three "big" systems--main dedicated two channel system (Avid/BAT/Vandersteen), family room "daily driver" surround system (Marantz/B&W) and a Sony/Meridian-based dedicated home theater.  Then there's my home office rig gets which also gets daily use.  We have a second home office and a garage setup (cast-offs from earlier days).  Daughter has a little Monitor Audio setup in her room and my twin boys stream my iTunes library via their laptops to outboard speakers.  We're a music family.

Wow, I'm a little surprised to hear this type of response. It seems "ultra" luxurious to have more than 1 audiophile system, much less three or more! I thought I might hear a tiny voice of reason. But thanks to you guys I might have to move forward with the idea. I've been secretly planning it in the back of my mind. The great sounding econo system I never built. 
 Uh, that's insane mesch, though it sounds eerily similar to my coffee traveling habits. 

I have my primary system in a dedicated listening room. Like it very much. I have a second small system, Dynaudio Xeo 3 on dynaudio stands in the living room. I also like it but for serious listening I go to the music room. 

Ok, I am timid in admitting it, I am a bit of a collector… been addicted to electronic gear since sometime around my 7th birthday… much unused gear around my house not even mentioned here… Pro audio gear etc…. an artifact of being a musician in the A/V business for many years, at least that’s my excuse and I’m sticking to it… I lost count years ago… I get attached…

Most actively used… I have a great family room system based on some Sonus Faber Olymica II’s with a Musical Fidelity A5 Integrated and A5 CD in rotation with an Audio Research LS17Se driving a Bryston 3B and other misc. amp options along with an M&K Sub… Nak ZX-9 cassette etc, may put a turntable on that one...

Then there is an Adcom system driving some ancient JBL towers in my music room (as in musical instruments room)…

A much used mini Tiivoli system with my bedroom TV, another system with older Sony receiver and CD changer, Nakamichi cassette driving some Canton mini speakers in my lab/workshop..

A Sony A/V Receiver, Mirage speakers and Velodyne Sub with a big screen theater in the lower level… least used of them all… silly to have so much gear when I actually think about it…

Yes, I still enjoy working on an old piece of gear on occasion to get it up and running or sounding better by doing a few mods, cleaning etc…

Love the music, a bit burnt out on the the gear chase… I Like reading what others are doing here reminds me of the culture around Audio… Great people!

My main system is no holds barred for the ultimate serious listening sessions at least for me.  I use that as a reference but my second system costs much less and has some limitations. But still sounds spot on for serious listening at least up to modest listening volumes

My third system will try to match my reference system similarly but do it with a totally different approach i.e. Small tube amp.  

Lots of of flavors of very good sound.  It's fun to sample as many as possible and hear and appreciate the unique strengths and differences.