Ok so if we take mediafire at $3.75/month for a 1TB (45$ yearly)

PRL price will be around 3$, hmm

By my logic, that would put it at 38-42$ per token. Where are you getting 3$ from?

1 PRL is equal to 64GB that is the difference. Taking this into consideration,
the value 3USD sounds valid.

A small correction "atleast 64Gb" it could be higher than that.

The pegged value will be a minimum of 64GB/yr. My personal guess is that it will1 PRL will be pegged at 256GB/yr or possibly 512GB/yr.