On completion of a set,you will notice a 'Yellow,rotating star',by clicking on the star, you receive a bonus amount of green bucks,dependant on the type of set. Silver sets are 3,000 bonus,Gold,10,000 and Diamond,50,000.The bonus is only awarded once,you don't get the bonus for multiple set completion.You will also be awarded your sq/ft saved at this stage,which ranges from 100 sq/ft,for being the first to complete a set,to 10 sq/ft for all those finishing tenth and lower.