When did LEGO stop putting alternate build pictures on boxes?

I just realized that compared to sets from when I was a kid, the boxes only have pictures of the main build (or builds in the case of 3-in+1s). Growing up as 50+, each box had lots of examples of other things you could make. I was wondering when this change happened. Did it correlate with a business change, like licensed sets or the end of the yellow and blue boxes? Is it related to MOCs being easy to find online? I'm generally curious and not trying to be a "everything was better when I was...