So did you know there is organic iceberg lettuce? There is.
It is very heavy, a medicine ball of a lettuce, and costs per ounce about the same as a white truffle.
Its primary distinguishing characteristic is that it starts to go bad in its wrapping much faster than non-organic iceberg, which does make you wonder what they do to the regular stuff, as full of water as it is, to keep it from going bad.
People think iceberg is stodgy, but I find it very architectural and cool. And rather ephemeral, for all it sturdiness. It's like cracking open a a tropical fruit or something, that first blast of iceberg moisture.