gnarkley, where you're going wrong is that you are thinking that 2-1 = $2 return for $1 not so of course thats even money or 1-1,

if you had $1 @2-1 you would recieve back $3 i.e. $2 winnings + your $1 stake back)

it is a mistake made by many newbies and incredibly by many old timers as well.