Actually no. I'm saying that they seem to have learned what their costs are and have priced their service based on those costs and what ever economic model they use. Given their pricing it suggested that "transactions" (which is to say a query from the web and its response) are either a good scalar for their cost to deliver, or are one of their scarcer resources.

It is entirely possible that they discover they can't make a business out of selling 'engines' like this, it wouldn't be the first time they decided they were leaving too much money on the table.

They chose "c" - scale the price so that AppEngine is revenue positive for the company using these constants for the various moving parts.

Clearly some customers will find that it no longer makes sense for them to use AppEngine. It doesn't say anything about whether the market reach will be sufficient to sustain that business.