At first it was because of VR, my belief that VR is the future (still believe that) and wanted to get involved in some way and hopefully make lots of money doing so.
Other than the very best keywords (ie video/games/360/p*rn/casino) i don't see much demand in the future for VR domain names, even though i believe in the tech.
But investing in VR and making some mistakes investing in VR this as broadened my horizons to investing in other things and i have been involved in 5 and 6 figure deals in the 5+ years of investing in domain names and I own 1 or 2 other 'potentially' (i highlight the word 'potentially' as nothing is guaranteed) valuable assets that people here have valued 6/7 figures.
I think domains is one of few industries where people can make huge ROI or in some cases become rich no matter background and full time occupation is, you can't just do that though, you do have to know what your investing in, but anyone has potenital to do that no matter background or where you live in the world and that is my interest in domain names, that 'hope' it can give people in all walks of life.