If you want to compare apples to apples, look at the Tecra 500CS from 1996 that was my first laptop in '97 - it cost me $700 practically new. (Then as now, ex-fleet machines are a great way to go, as long as you pick ones that were issued to people who hate computers.) For what this was doing half a decade later, it doesn't make the 1991 model look too shabby, although I concede nothing in those days had as much as one one-millionth of the price/performance of almost anything you can pick off a shelf today.
https://www.minuszerodegrees.net/manuals/Toshiba/Tecra/Toshi...
One of the reviews in TFA mentions that they considered it too bulky to qualify as a "notebook" computer. This computer was on the heavy side of normal for a "laptop" of the day, but definitely not light for the day.
[edit]
A more fair comparison might be the Compaq LTE (1989), which had a hard-drive and weighed under 7 lbs (if someone can find a more specific number let me know). The LTE/386 came out not long after this, weighed 7.5lbs and had a similar thickness.
It's not German, it's Dutch.
amelius•23h ago
Depending on the geopolitical situation, these could also be ads from the future.