Since domain names are finite, like real estate, why not charge based on demand? In this scenario, in-demand domain names (mostly based on length) would have hi

Since domain names are finite, like real estate, why not charge based on demand? In this scenario, in-demand domain names (mostly based on length) would have higher renewal fees than undesirable ones. Perhaps add an order of magnitude in pricing for each character under 7? >=7 - $10 6 - $100 5 - $1000 4 - $10,000 <=3 - $100,000