You would still depend on the constant availability of an origin for your data.

IPFS is not magic in that regard: if whoever is your origin disappears, then your data is likely to disappear at some point, especially if it's not super popular.

There is no free lunch: you either become your origin yourself, or you pay someone else to be.

But because it's distributed, you can be the origin for hundreds of pages on a tiny $5 vps and when popularity increases you would not have to shoulder all the load.

Though : would that lunch be as expensive as $10 per month or would it be almost free like $0.1 per year ? I consider that to be pretty much free :)

Here's a pricing example: https://www.keycdn.com/pricing