I think that every kind of vending machine should appear in at least one wizardland room. While we already have a room with craft and alcohol vending machines we still need rooms with Food, Bolt, and Throwing Weapon machines.
I've gone through the Wizardland room files. Not to mention that I've played through the game several time since Wizardlands came out.
Wizards spend much more time drinking and crafting than they do eating, throwing, or crossbowing. Hence, they stock their eponymous-lands with machines dedicated to the things they most need. The bolt council tried installing some bolt machines in a test market of pointy-hat-guy-lands, but these only turned a profit in cases of the land in question being attacked by some eyebrowed adventurer. Just wasn't worth the costs associated with sending a crew out transdimensionally to restock the machines, especially since no single adventurer ever returned to the same wizardland after their initial conquest of it.
Or they smack each other with Fruitful Staves. Which led to the invention of the Evil Clone levers, so the real ones could drink booze with less bruises.
On a side note, I was looking through my list of wizardlands, and wrote that this Level 3 Wizardland: bangjalnuskolkol one has an Uber ring (+3, +1, +1, 2, +3, +1) AND a Crafty Crafts Machine.