Totally different market segments. And you get way better sample rate and memory, and maybe update rate etc.
For "only" 2500 bucks more you get a second ADC, a bigger screen and a different FPGA, thats all.
And more memory, but hardware-wise, it's not worth the money, much less the 2500 bucks surcharge.
Even more drastic in the sense of hardly different is the comparison DHO1000 to 4000.
The 1000 basically only lacks the second ADC and the extended inputs, otherwise everything is the same.
What struck me negatively in February with the DHO4204 was the very simple equipment of the FFT mode - is that now different, better ?
Also that "your" DHO 814 had a crash, stands out negatively, because I had with the DHO4204 also, a total of three times in three weeks.
At that time I had explained to me that the scope is still young.
But with the DHO814 and over half a year later...
And what about the display mode ?
Still only vector and no dot mode ?
It is the same UI/software as in the DHO4204, if there was progress in this regard in the last 7 months, this should be found again in the DHO814.