I will try to test if those "servers" would be good for task processing. Example: let's say I have a ton of websites to crawl (high IO, not much CPU, ideally parallel). I could use a couple of these to cheaply do the job.
I am guessing that any job that is not CPU or memory hungry would fit the bill. Like crawling, sending a massive amount of emails, simple text processing, maybe even as a RabbitMQ server.