This survey asks

      how much to add to AWS EC2 "usage" fees.

My first question is why tie the cost to EC2 instance costs?  

AWS has a lot of variation in pricing EC2 use

• Spot Pricing Instances
• Reserved Instances
• On Demand Instances

then there are various costs for different sizes of compute resources

• Small Instance 32 bit
• Med Instance 32 bit
• Large Instance 64-bit
• Extra Large Instance 64 bit
• High-Memory Double Extra Large Instance 64-bit platform
• High-Memory Quadruple Extra Large Instance 64-bit platform
• High-CPU Medium Instance 32-bit platform
• High-CPU Extra Large Instance  64 bit

These are all priced differently by AWS.

However from  an "Application Appliance" perspective there are really only two considerations (32 or 64 bit)

So should someone pay more $ to run the Appliance on the largest 64 bit machine resource than on the smallest?   I'm not sure the application's configuration changes does it?  So why should it cost different.

Next using EC2 "usage" ...

Remember AWS's EC2 usage fee includes your use of Elastic Block Store (EBS), load balancing, auto scaling etc.   None of those additional service costs for EC2 have anything to do with the Application Appliance... 

My point I guess is I'd like to better understand what the Poll Question means by AWS "usage".

thanks