A recent micro trend has seen some businesses allow their customers to choose the price they pay for their services. Radiohead invited their fans to pay what they could afford for a recent album. Now there's a type foundry offering the same concept — good quality typefaces for whatever you want to pay, from $0 on upwards. The psychology of it is interesting — if the typefaces were free, a user would download them free of guilt. When there's a possibility of payment, however small, the free option then seems mean spirited.