Given that iPhone 6S and iPhone 6S Plus will not be available in versions with a minimum of 32 GB of storage space, the Apple company thought of making the monthly subscriptions of the service or iCloud cheaper.
In this idea, starting this month iCloud subscriptions will have a starting price of 1 dollar per month for 50 GB of storage space, so all those 12 megapixel photos and 4K videos will be able to stay in Apple's servers without problems.
200 GB of storage space will cost $2.99 per month while 1 TB of space will cost $9.99 per month, so you will have a choice of what you need.
