Having an almost 2 year old daughter, I rarely have time to sit down and fully enjoy listening to my music the way I used to. When she's asleep, it's not like I can listen at any volume I want to. When she's awake, the stereo gets dominated by her music. No regrets whatsoever. I've found a new way to enjoy music - dancing and playing around with my beautiful little girl.
Granted, your situation is different than mine, but I think my advice is the same - the point of music is the musical quality, not sound quality. Sure, better sound quality enhances the enjoyment, but its not absolutely necessary, is it?
In your shoes, I'd get an inexpensive setup that you can keep as a permanent secondary system. One that'll stay in the living room/whatever room for when you're up there doing what you do - dinner, guests, etc. maybe something like an Arcam Solo and some on-wall speakers like Totem Dreamcatchers with their optional wall mount brackets. There's a ton of great sounding gear that's inexpensive out there. Even simpler would be something like Audioengine powered speakers and a laptop.
