That's why spot pricing exists.
It's basically an auction market. You set your max price to bid on instances, and will get them as long nobody else bids higher.
It's basically an auction market. You set your max price to bid on instances, and will get them as long nobody else bids higher.
More details here:
https://aws.amazon.com/blogs/compute/new-amazon-ec2-spot-pri...
You set your max price, up to the on-demand price, and then you'll get your VM... or not. If you do get the VM, you still don't pay the full price in most circumstances unless demand is very high.