I used to sell those in London, from 1979 into the early 80s. They were £1,000 back then, which was serious money. If you had that, some mics and a little mixer, you could set up a commercial demo studio, and charge by the hour. Although I never had one back in the day, I bought two of them about 10 years ago, because my friend had about 20 NAB reels containing his demos, recorded when he was a pro musician.
What a horrible job digitising that lot was! I had to bake the tapes, because the binding had stuck the tape together. When I got them to play, the oxide shed was so bad, the cleaning cloths looked as if I'd used them in the bathroom. I must have got through aboout a pint of Isopropol alchohol cleaning the heads and transport.
What struck me most was how noisy and clunky everthing was. Not just the tape hiss, but the transport. Hitting play and stop sounded like I was banging nails in. I seemed strange to think I'd once dreamed of owning one of these machines.
On the other hand, I had a TASCAM 244 and a 3300 open reel that I used to write songs on, and it was great for what I needed to do. When the Portastudios first came out, they were half the price of a 3440, and we could sell 10 before they'd even landed in the UK. Seriously, I was telling pop stars they'd have to wait a month before the next batch came in. Happy days.