[systems]

beside curiosity .. and maybe learning

what are the common business usage for this, who uses this daily to do his work .. if this use case exist at all

for this price, i imagine there must be a very dedicate niche who needs this, who is this niche

[jasode]

>, who is this niche

Programmers working at antivirus companies analyzing malware would be an example. See page 2 of the pdf:

https://www.hex-rays.com/products/ida/ida-executive.pdf

[tacoman]

I use a similar application to reverse binaries of proprietary software we legally purchase and use. The vendor is sometimes unable or unwilling to document how something actually works or how something could work if it was configured in a certain way.

[ihalip]

Malware analysis, binary patching, research, bounty hunting, developing cheats, etc etc etc. There are a lot of use cases.

[0x4a42]

Industrial espionage.

[Dolores12]

cracking software - like removing dongles, finding valid registration keys, removing server checks etc