Claiming a domain is expensive, but it is a 1 time action.
Another area to focus on to reduce costs for domains is resolver contracts.
Let’s discuss some ideas around moving resolver contract data - which is expensive to store on ethereum - off chain. Either on a storage solution or to another blockchain.
Downsides to using an off chain solution is lookups can no longer be done on chain directly, so integration partners will need to be able to resolve information off another chain. However with gas costs on Ethereum so high, and unlikely to go back to very low levels, thinking about longer term solutions for storing data about domain names seems like a fun topic.