I would get one just for the Meridian.
But I am a little biased...
The only system that has never got Fiona saying 'Turn it down a bit!!'.
The way they manage to give the dynamics but keep it controlled at all volumes is superb and very clever.
I also happen to think the XJ is the best all round car on the road at the moment. I would love one, never been a Jag fan, but had one for an afternoon and was smitten. Very impressive luxo barge.