I have checked it with few domain names and whet you said is alright. So i changed the reservation period for more than 6 years and i got two notes:
1- The price doesn't reduce if you want to reserve the domain for one year or 10 years. If the first year costs 5$ so the 10 year will cost 50$.
2- The gaz fee remains higher than the domain price for 6+ years (this is funny Lol).
I thought it was the cause of buying a site at a cheap price and selling it in the future at a higher price, but many people buy those sites.
You can find distinct and easy domains, the database is still medium.
My question is what would happen if Ethereum succeeded in upgrading and the fees became very low, I expect more and more applications on the Ethereum network.
If the fees will be much lower after the upgrade, then i expect the service would be become popular which will results the increase in domain names prices. Also, i guess other domain providers (GoDaddy or NameCheap...) to add the eth extension to their databases and charge a fee additional to Ethereum network gaz fees. Also don't forget the other networks who will try to get a portion from this cake, i can't tell how it would exactly happened technically but i am sure it's quite possible.
This market is full of madness though.