What a pathetic little dig at China. Would sir prefer a nice Jackson or Kramer? - ASSEMBLED in America during their heyday, but from wood sourced in developing countries and shaped and produced in Japan and Korea.
China rarely employs slave labour. China almost never employs slave labour in association with western companies, and Chinese woodworkers can be as good or better than any "western" craftsmen or manufacturers.
Epiphone's guitars are crap and built to a price; pay more and you get a better model, but personally I can't stand the size of the neck on Gibsons or Epiphones. I have a Chinese-made Lamaq, which is rather good (the designer is a reasonably well-known luthier and player, and designed but did not manufacture the guitar).
Differing local economy does NOT equal slave labour. If you look at the figures for iPod "slave labour" the workers are paid "relatively" on a similar level to people doing the same work in Western economies.
Adnim: The GR 707 is perfectly playable, and if you kicked it into electric mode there's no delay. Whilst you may have found it impossible, you'll find people like Andy Summers had no problems! It was, after all, a real guitar and very well designed. Many, many skilled guitarists have mucked about with mine (now sold) and been utterly impressed with the instrument as an electric guitar, if not the synth system. Also, the GR 707/GR700 wasn't available in 1983 so if you saw one then it was almost certainly not a "finished product".
For unplayable "guitar controllers" the horrible, plastic DG-20 and DG-10 (MIDIless) Casio, which used plastic strings and sensors on the fretboard, demonstrated a genuine attempt to much with the guitar paradigm. And also would be far more suited to an educational, updated Guitar-Hero type package, with tab appearing at the bottom of the screen and sounds depending on correct string/finger placement and timing.