The West has misconstrued and turned 'Zen' into a buzzword without concise definition. The Asiatic Cultures relate 'Zen' to meditation, Intuition even Self Depreciating, Humourous Humility. The number 7 is universally considered 'lucky' or at very least has cultural significance in some way, days of the week as a basic example. Long story short. One Hong Kong Dollar, bahh just kidding. Some sycophant had an even better one, 7Yen.com ($7) that is a 10k name. SevenYen rolls of the tongue nicely. I'm sure there is a wealthy Asian out there who would happily part with $5,000 to $10,000 for this one. So off you go and find him/her.
Regards.matt