"What happened to legos? They used to be so simple."
They stopped being purchased, and complexity helped restore the lost sales... Consumer demand, called progression...
Then they got overly complex, over-priced, and MTV was invented... Lego died and had to re-birth inside happy-meals as snap-together-models under the brand-illusion of LEGO...
Not sure what is keeping them alive today? They just convince the billions of stores that someone wants them, so they stock 10 units each, selling to nostalgic collectors and Indestructables-creations...