What do you no longer have that you would enjoy a night to listen to again?

Not that anyone does not like their current setup, but most of us have used our best knowledge and experience to own some very good items.  As with many of those items, they were eventually replaced.  
What ones would be fun for you to have one more night of listening with?
My first thoughts that I would, likely, enjoy again are:
CJ ART peramp
Wireworld Gold Eclipse III
Magnepan MG-20
Martin Logan Sequel II
Original Classe CD player with the Ultra Analog chip
Wireworld Eclipse III speaker cables
Nordost SPM interconnects and cables
Several tuners, Magnum 108, Sansui 919, Etude...etc.
I know there are more, but to keep it short...

Because having worked in audio and music at one time, before going on 
to modern furniture,  I have had some good items...and sometimes made 
changes that were questionable in any sonic improvement.  

Much like a Lotus I owned that was replaced with better and more reliable 
cars...but boy do I remember the cornering of that Lotus....close to the 
formula cars I drove in. 

If you choose, it would be interesting to know what you no longer have 
that you would enjoy another evening to listen with. 

I had a 1972 240Z, cammed, with a 6 into 2 header and Weber side drafts that when tuned had the best balance of intake and exhaust notes I ever.... oh wait you mean stereo gear?

None of my own gear. Not really. There was one budget system though, put together for a friend, $1200 total, that was set up on a side wall of my listening room to burn in, and that thing sounded so good it was all I listened to for a solid two weeks. Honestly couldn't even tell you what it was, it was too long ago and after all not really mine. But everything that was mine, if it was good enough to want to be listening to it today well guess what? I would be listening to it today! Har!
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The 240Z had major impact on the world of sports cars and what to expect for your money. 
My interest in cars has been with me for many years and is nearly equal to my interest in audio and Bordeaux, but none can challenge my interest in my children, family and friends.  One of the sad things that growing old has brought me is the death of my closest friends,  and they were a large part of my audio/music journey. 

Well her name was Buffy. I met her, she was performing as a belly dancer at a party we were at. I had a great time with her, wonderful dancer. The blond in everyone’s life. 2 years of PURE CRAZY...LOL

I’m glad she’s gone. I married her best friend. Been together for over 40 years, now..

Oh STEREO stuff, I never sell anything.. Well sometimes.

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A Radford STA-100 with Marconi-Osram GEC KT88s back in the 80s. It had 3D sound with the most amazing tone. Unfortunately, it developed a hum from bad caps and I couldn’t afford to replace them so I traded it for something else.
You want to know the PURE CRAZY part Dave? I believe Buffy might actually have been her real name.
It actually was the name she prefered. Beth was her given name..

Let’s say, she was a GREAT cha cha cha dancer.. yea, really good as a matter of fact.

Great stick welder, too.

Favorite car, Karmann Ghia. Go figure.. :-)

Her problem, she didn’t like mono, she was a definite STEREO girl..

NO NO, you nota gonna meeta, MOMMA’, No No!! LOL

First words out of my mothers mouth, "when you gonna grow up boy"

Probably my Nakamichi CD headunit in my car when I was teenager with the top model boston acoustics speakers at the time. It was great.  
My Koetsu Black Gold Line. Until I get to the inner grooves.

if i regret selling something i just find a way to buy it back...
oldhvymec, nothing wrong with liking the Karmann Ghia.  Not to be a snob, but from Ferrari to Lotus to Porsche to race cars I have lived a good "car life"...but with that said, my original VW Rabbit was quite a break-through car and it must have been pretty good as I owned it longer than all but a 944S2. 

LOL Liking one and owning one is a different story, ALL the old VW type I - IV were all good. The issue was alway proper maintenance.

Same with Buffy the Belly dancer. Always a maintenance, issue.

I actually did a short stent in a Study/Rambler independent dealer. part of the old apprenticeship for a Masters, through Mitchell. That dealership, was one of the few that did VW, Saab repairs.. Crack me up. They use to call it Foreign or Domestic, car repair.. I don’t think there was a dealer for VW. Maybe SF, Berkley. Long time ago..

Rambler Scrambler..

Give me a brand new Roller (Rolls) I’ll be fine, chauffeur to if you don’t mind... :-)

I forgot another favorite, the Yamaha B-2 amplifier. 

There was a Rambler/AMC dealer in my birth town.  I drove the Javelin, AMX and Scrambler....came close to buying an AMX and ended up with a Corvette.