According to RotoHog, this is how things work:
RotoHog.com wrote:Starting with a budget of $275 RotoHog (fake) dollars, you select athletes for your team roster in a competitive free-for-all draft that will be held between March 12 and 29 on the day and time that you select to draft. You can draft with 11 of your friends in a 12-person private draft or meet 11 new people in a 12-person public draft room.
Then, beginning on March 30, you can start selling your athletes and buying new ones on the RotoHog Trading Floor, where athlete prices change in an open market based on supply and demand, much like a stock market. To regulate supply, one complete set of athletes is available for every 12 managers in the RotoHog Universe.
As in most traditional fantasy baseball, you win by creating a lineup each day that gets you the most total points over the season using a standard points-based scoring system. But by shrewdly managing your roster -- buying and selling athletes at the right times for a "profit" -- you can increase your budget during the course of the season, thereby allowing you to construct a team with the greatest scoring potential.
As further incentive to join at RotoHog, the site is offering cash prizes for the top 10 overall finishers, ranging from $100,000 to $1,000.