The 3014 and 1000zxl are top scams it seems. There was even a 1000 Tri-Tracer on ebay listed as a 1000zxl (gone now) with all the descriptions for the ZXL. While a nice deck in its day, it is not even close to a 1000zxl. I have a personal friend that lost $4000 on a 1000zxl Limited scam. He should have known better.
Which does bring up the point that besides Holy Grail meaning different things to different people, what was once Holy Grail in its day, may not be if looking at the whole gamut of cassette decks. The 1000 Tri-tracer was in its time the most expensive consumer deck and deserved the title more than any other deck…in 1974. And in a way, it & the 700 Tri-tracer as well, still deserve the moniker because even today, their performance could still be considered (within narrower parameters) outstanding. But there is no doubt what so ever that far later decks built 10-15 years later surpassed them in many ways. (Though weight would not be one of them, except the 1000zxl, which weighs a ton). Those old tracer models all had fully discrete component Dolby B, no ICs in any audio circuit, and enormous flywheels, larger than the 3014 by far, huge, accurate, very wide range, well built meters, adjustable record head with azimuth beacons, and as long as the heads are not worn, still plays and records through 20kHz today. They are a nightmare to service and there is no guarantee of success after spending way too much on one, but if you succeed, they are definitely wonderful to listen to and operate. Similar to a well sought after classic tube amplifier.
The same can be said for the 1000zxl, except it used the standard classic transport, with select heads, same basically as the 680zx. In 1980, when it came out, it, digital meters were very new, and the 1000zxl had then (and still does 40years later) the best that ever were designed. The largest with the most individual segments and switchable peak holding and VU, they are mesmerizing to watch. There is literally more circuitry just for the meters than in all of most normal tape decks built 15 years later. Another absolute nightmare to service, the 1000zxl has 16 different printed circuit boards, and the faceplate alone has 17 different connectors going to 5 different boards and about 30 separate light bulbs. When working properly, it can calibrate for recording any cassette tape made, with a flatter and wider FR than any cassette deck ever made, no contest. It doesn’t even have any tape type switches on it. It automatically determines the best eq, bias, & sensitivity for whatever tape it records, and when that tape is replayed in the deck, it sets the playback, including Dolby, to match. (Of course, playing back those tapes on other decks, means knowing what it was recorded for, and that the deck must have manual setting capabilities) It even had programmable playback of tracks for tapes recorded on it, in any order, including repeat, unheard of in its time. Holy Grail for sure, but for many more reasons, completely impractical to own, including its microwave oven sized footprint. A $200 smartphone has 100 times the computing power (at least). I lost count after around 60 -70 of the individual ICs in the beast, many of them absolutely not obtainable any more.
So sleek modern sports car, or classic vintage sports car or classic muscle car. All desired under different parameters and filling different niches completely.