What are the major benefits you yourself get from it? My major reasoning used to be emulators, but I have a hacked New 3DS which runs everything I want it to these days with better controls.
Firewalls like the grandparent comment seems quite useful
Also- recently ordered a Japanese New 3DS and am glad to hear you are enjoying it, looking forward to having a great emulation machine- maybe one day I’ll get around to installing a modchip in my switch lite too
The injectors for the Virtual Console are super great too; GB, GBA and Sega have worked flawlessly (including saving, for the GB/GBA). It can be a little finicky to get the right settings for injection (around the battery/nand emulation), but once you get the process down pat it's straightforward.
The coolest part was that the second hand one I bought still had the previous users Nintendo Account setup on it, but the homebrew/custom firmware system let me erase it without wiping the system.
They're brilliant little systems, I'm very impressed.
I've got the first-generation bootloader exploitable Switch that I've considered hacking, but I think I'll wait til it's a bit older or I've replaced it with the next generation Switch.