In other words, Sia is not BTC ordinals or arweave. Not all data is on the blockchain and this is the most mis-understood thing about blockchain in general due to the hype of the industry…
You are paying for the data to stay up for as long as you wish for it to stay up.
If you are wanting forever, immutable storage, Sia is not it. I would also say I don’t think forever storage that is not metadata will end well, but that is an entire other debate.
Kudos.