Because " No Commerce" is such an important focus for Chai Guy and many others I'd like to know more about why this is as important as it it to them.
Well it's important to me for a lot of reasons (many have been mentioned above). Essentially:
1. No commerce should mean no commerce, it's difficult to explain to people the non commercial nature of Burning Man when you have to add the "except for center camp cafe" addendum.
2. If we are a "community" shouldn't the "community" provide for itself? You know, "radical self reliance" and all, right? (again "You are expected to provide for your own survival - except coffee/chai/lemonade etc.)
3. It's a Gift economy, by providing coffee and chai for $$ you are taking away an opportunity for members of the community the experience of giving or receiving of a gift.
4. The Center Camp cafe creates all the same problems we see with the default world, people leave trash everywhere (IMO it's the most consistently moopy camp on the playa), there is an expectation of entitlement because "I'm paying for this latte!" The design of the cafe is built for spectating "hey look, a stage! entertain me!" There is no community investment because it wasn't produced by the community, it was produced by the LLC.
Finally, it doesn’t matter if the community can gift coffee/chai 24-7, part of the beauty of the event is not having expectations and the serendipitous nature of it all. You wouldn't ask Alien Love Nest to not give out pendants if they couldn't provide for one for the entire population, why does getting rid of the cafe mean that someone has to pick up all the slack?