Second audio system in your house?

 Oh man french_fries, you hit the nail on the head, I seem to take all my hobbies too far. Hifi in and of itself is a bit over the top for the general masses. For example, somehow I've aquired over a dozen fine tobacco pipes in the past 6 months. I suppose it's a bit of a personality disorder. 
 Well after reading all this it appears the magic number is 3, so I'm still clinically sane (if you don't count my car) and within reason. Hell I'm basically obligated to build another at this point. The problem is, I've always wanted to try out an all tube system, and maybe a killer headphone set-up, so I can see other systems off in the horizon. 
 

I'm another one with two systems.  I have a dedicated 2 channel system exclusively for vinyl.  VPI turntable, PrimaLuna tube pre-amp and a Cary c280 V12 power amp.  ....all second-hand gear!

I have a second rig in my home office for headphones.  I have a dedicated Oppo HA-1 DAC/headphone amp and a LCD-3 headphones.  ....lossless digital bliss.  

Look for some used equipment, however, buy something you like vs. a good deal.  You will end up changing equipment out to get what you really want.  I have a McIntosh 6600 integrated amp and ProAc speakers for the main listening room, a great sounding system.  If you can't spend more than $1,000, look for the used equipment.  I ended up with a third system in my office and spent too much $ 7,000, but I love it.  As mentioned from some of the other equipment lovers, you can't have too much gear.  The wife doesn't get it, that's ok.  Have fun, owing the equipment is the fun of it, especially, if it's great gear.  I call the audiophile experience the black hole for spending money, you can't take it with you so enjoy it.  

4 different dedicated systems excluding Home Theater and smaller systems in bedrooms, outside, poolroom, kitchen.  Part of life and agree the opportunity to experience different nuances without changing when you have a single system.

One thing about spending $1000 on a second system is that you might find out how good one can sound with such an expenditure. I have friends who think nothing about spending $1000 on a TV and won’t spend $500 on audio to augment the experience. Oh well, not my problem.