A Seed account is a permanent (never expiring) Premium Paid account, intended to support the business and provide our intial year of funding. They cost $200 USD (the price of four years of premium paid service). We originally intended to sell 400 of them, which is what we estimated would be our costs for the first year of operation, but thanks to some bugs in the payment system, we decided to hold another limited sale for the people who wanted to get one and couldn't thanks to PayPal errors.