I am aware of that---I've written and reviewed several peer-reviewed papers. Maybe many of the journals are making money hand over fist. But I've become suspi

I am aware of that---I've written and reviewed several peer-reviewed papers. Maybe many of the journals are making money hand over fist. But I've become suspicious of arguments of the form "that seems like a high price, therefore they must have huge margins". Sometimes the price is high because the market is small.