Its cheap as fuck. I hate retards who just study openings to get an advantage. Then they play shit in the game.
Yeah booked up fish probably don't think they can develop genuine chess skill so gravitate towards memorizing theory and hoping for the best.
Yeah Grünfeld can be too complicated for one with a rating of 1000. I remember when I bought two books about this opening (both were Grandmasters' repertoire by Boris Avruh [or something, I'm not that good with names :) ]) and it had a lot material to learn. KID could be the opening for you - there is usually ways to avoid the long theoretical main lines and to have positions which you can just play.