Instead of paying for monthly or yearly upload quotas, you can simply pay for upload quota one project at a time.
When creating a new gallery, you can choose the amount of quota you need from the available options. You can start with a free 1GB upload quota option and purchase more upload quota later. Or you can purchase a paid higher upload quota option (for example, 10GB for $9 USD).
You can add additional upload quota to any gallery in 5GB blocks for $5 USD.
Note: Deleting and re-uploading media (i.e. replacing media) currently doesn't count against your quota usage. We do plan to change this in the future - Learn more here.