If you were in the military overseas in the 70s (74-77 for me), there wasn't much to do. IIRC, about 300 thousand GIs were stationed in the Far East during this period, with about 800 thousand in Europe at that time. Rotation back to the world for everyone was approximately 24 months, some more, some less. Everyone, and I mean EVERYONE, owned a great stereo system with all the bells and whistles; turntable, cassette, reel to reel and whatever else you could buy. The PX had every model of every conceivable manufacturer available at least 50% off. Save up a little and buy the receiver or tuner amp of your choice along with your dream speakers (Sansui in 1975, whatever it was, and a pair of Pioneer speakers, I think they were HPM 100s), then next month get that great turntable (Garrard 100, I think), then that great cassette deck (Dual 901c, had to have auto-reverse), finished it off with a Dokorder 7140.
In 1977 I fell into a windfall of sorts from Uncle Sam and bought another whole entire system (Sansui QRX7001 with 4 Pioneer HPM60s, Pioneer turntable and Pioneer cassette). All shipped back to the world for free courtesy of Uncle.
I would guesstimate about 500,000 great stereo systems were coming back to the good old USA with GIs every year in the 1970s. I was lucky enough to bring back two.
Both of those systems are long gone now. I didn't know what I had then, and not just in good stereo equipment!
By the way, this is my first post, been lurking for a while. Started to get back into music. Bought a pair of Insignias based on this sites recommendations, and then bought a pair of Radiients with the little tweeters on top to run an A+B configuration (no more Quad or 5.1). Running them thru the Black Plague JVC 888VBK and listening to FM for the moment, but I've got a Yamaha CR-820 coming to me, courtesy of eBay. FM will do until I can get that turntable and reel to reel I want.
I have to say thanks to all of you and all the great posts to help me "turn back the clock" and enjoy great music again!