[em_te]

The ENS domain system is similar, but they added a few rules to benefit the domain holder:

1) When the domain expires, it still remains active and still linked to the previous owner. People can still use it as normal.

2) When it expires, the price is set to a very high price for a few weeks. Anyone can buy it at the higher price. If no one buys it, it still remains active and linked to the previous owner.

3) If the previous owner wants to buy it back after it has expired, they just need to pay their original price (not the high price), provided that someone else hasn't already bought it.

4) At the end of the initial few weeks, the price drops a little and remains at this price for a few more weeks.

5) The price eventually drops to the regular price after many weeks.

6) At any time anyone can pay to extend the registration for another year.