I did this work for my portfolio. The inspiration and idea came from the news of the euro's inflation. Maybe i was little bored also, and i am workaholic so i need to do always something with 3D-animation softwares =)
And maybe i have that workaholic because i want always improve my skills. I always try to do perfect performance but i know that i can never reach it. I also know when it is good to stop the working and move to next project.
If i could decide that when project is finished, i wouldn't stop until it is perfect - but it is impossible because we have limited time for life.