Well, I'm going out on a limb here, and gonna say that if I post one of my home brew setup, it's gonna be because I had to move the tractor outta the way to set it up. I brew in the tractor shed and tractor in the brew shed. Ergo, beer does have a connection to tractors.
Any other kinda beer, I might have just agreed with you about it being the best photo, though. I've been to the Guiness brewery in Dublin, and that stuff didn't taste any better within 100 feet of where it was being made than it does after a trip across the Big Pond. I tried, REAL HARD, to finish a pint in the upstairs pub at the brewery, but just couldn't do it. Much too bitter for my tastes.
Hang on a minute, I just saw the heat lamp and some chicks in the background. Maybe he's feeding the chickens with Guiness.