(copying my answer also in here from your other post)
Going from a 50GB to a 100GB VM instance on Vultr will take you from $12 to $24/month. Up to 180GB, $48/month
This is true if you’re only updating your VPS to the next tier, but this not only updates disk, also vCPU, Ram and bandwidth. So maybe you’re updating stuff you don’t need.
I still have my 1vCPU, 1GB RAM, 25GB disk for $6 plus 40GB of block storage for just $1 extra.
If I want to go up to a 100GB it’d be $2.50 and 181GB would be $4.53.
For $48/month you can get 1.9TB.
I’m still not very familiar with object storage, so for something like pict-rs it could still be better/cheaper to use it, I just wanted to mention block storage can also be an option.