What's So Great About the Way We Farm?

Are there any industries, other than production agriculture, that buy inputs at retail price and sell goods at wholesale price?

A conventional farmer buys seed, fertilizer, chemicals, and equipment at full retail value from a manufacturer.  Farmers utilize those ingredients to grow large quantities of a commodity - corn, soybeans, or wheat among others – and sell their wares at wholesale prices to a manufacturer who will sell a product at retail price to a consumer.

Where I Belong

Am I really in the right job, am I using all my skills, am I challenging myself, am I working hard enough, am I working too hard?  Should I go back to school for a graduate degree, should I quit my job and become a missionary, should I go back to public accounting, should I start farming?  Should I learn how to write code for software programming, should I dedicate more time to write, do I spend too much time writing, does anyone ever read these things?  Would it be smart to sit tight until I find a wife before making a bold career move?  Or should I make the move and let relationships worry about themselves? Should I buy a new sexy pickup truck, should I buy a house, should I buy stock options that could pay off in multiples (or zero), or save it for a big shiny engagement ring in case I run into “Ms. Right?”  Or have I already run into her and I need to stop being ridiculous?