I'm new to the Lego community, so apologies if this is a dumb question.
I am trying to understand how best to get hold of 2x4 bricks in a variety of colors in the brown and green spectrum but am a bit confused as to why they're apparently hard to get hold of at a reasonable price. I already have some from some Classic sets I picked up, but only a few from each. I'm just looking to scale up significantly on how many of these blocks I own so that I can build something large with them.
I (naively?) thought that 2x4 bricks would be some of the easiest to get hold of, regardless of the color.
What am I missing here? Is there a genuine shortage of these bricks? Is there a better way for me to get my hands on them?