There are already 2TB SSDs available for less than 80€ and prices are expected to go even lower.
I agree with Artic Mine and believe storage is not going to be a problem for Monero and that the only real bottleneck is upload speed.
What do you think?
It seems to help on SSDs, just not as much
The point you made about it being impossible due to the nature of the blockchain is probably right,. Sequential writes might be possible because you don’t edit the previous parts of the blockchain, sequential reads wouldn’t work because you need to read the past of the blockchain in order to verify transactions