There's no product in the world that would hit a limit if autoscaled globally on AWS. Sure, you could write an app whose literal sole purpose is "take up all memory, CPU and bandwidth, recursively, infinitely", but nobody is making that product. Real products built today have a finite amount of demand, and global cloud capacity is larger than that.
You can't say what architecture is or isn't profitable in general, business is more complicated than that. But besides the realities of commerce, you can easily architect a system such that the autoscaling cost is a fraction of opex.
You can't say what architecture is or isn't profitable in general, business is more complicated than that. But besides the realities of commerce, you can easily architect a system such that the autoscaling cost is a fraction of opex.