[adios]

Definitions:

Labor Intensive - A process or industry that requires large amounts of human effort to produce goods.

Capital Intensive - A process or industry that requires large sums of capital resources to produce a particular good.

If "poker expertise" is a form of "capital" then IMO playing poker is labor intensive activity and writing books about poker is a capital instensive activity. You don't get the money as a player unless you put in the hours more or less (I'll condede that one could get lucky in a tournament and make a big score). On the other hand utilizing capital implies making an investment to reap future rewards. Leveraging one's knowledge about a subject or industry happens all the time in our economy and writing poker books is leveraging one's knowledge. Just a long winded posted to say that states that it's a perfectly rational economic and business decision that happens all the time in response to:

"So here are two of the best mid-limit hold'em players in the world devoting their energies to publishing/teaching instead of to playing. What does this say about the ease of making six figures playing mid-limit poker?"