[iforapsy]

Google Compute Engine has sustained use discounts: the longer you run an instance, the lower the price per minute that you pay. If you run an instance for a full month, you end up being charged only 70% of that instance's price. Essentially, it's like AWS's reserved instances except you don't have to plan for it ahead of time.

https://cloud.google.com/compute/pricing#sustained_use

[kolev]

That's actually a good idea and something that removes the need to create a marketplace for reserved instances you no longer need. Thanks for the info!