Can’t say I was ever a regular (I was a vegetarian for years, but never a vegan) but I had many friends who were.
In typical New Yorker fashion money is not mentioned, although money is the driving agent here. Her rent was $450 a month when she opened in 1976. You’d think that now that the culture has caught up to her and veganism has become such a thing that business would be booming - and in fact, it is. But since her rent has now gone up to $25,000 a month (not a typo) I can’t imagine how much brown rice and kale she’d have to sell to pay that.