The longest you have owned any gear?

No open reel decks, unless I missed it..
I wonder, how many more years can electronics in my Nak682ZX deck last? It was made 36 years ago, all original except capacitors. It is serviced and calibrated every few years.

Still going strong after 30+ years - my Audible Illusions, Modulus 2 pre amp. still in use and sounding great.

Inna, you did miss at least one open reel deck---my Revox A77, bought new in '72 and still in my possession.

Sorry. I can see that some people still buy Studers on ebay, for about $4k, but don't buy them for over $5k. I don't get it. When it comes to Studer and considering that $4k is already no pocket change, I would be prepared to pay extra $1k if I saw a good reason. 

I still have in use an Ariston RD11S TT that I bought new in 1977 ($280). No arm. First arm was a SME 3009, second was a JH Formula 4, third was a Keith Monks, fourth was a Lustre GST-1 and last (and present) is a Grace 707/ Denon 103 combination. The mat is also from 1977 - a Hiraoka Diskmat SE-22 that I bought new from Harvey Sound (48st NYC) - $20! Still sounds great! I also have more TT's, including a Linn Sondek, though none have been with me as long as the Ariston!