Is there a reason to use any of these services given how trivial it is to set up an open source alternative? You can push errbit to heroku in 5 minutes and you're done. Perhaps there is a level of service here and a business I don't see, and I'm a huge heroku and third party service user, but I don't see the need for a monthly service fee to aggregate and send exception notifications. It's either a self deploy or a f…
It all depends on how much you value your own time.
It never takes just 5 min. And over the course of a year it migh easily take hour(s) of development time that is better spent on improving you product.
Heroku does the same thing for example. They are quite expensive if you compare them to running on raw ec2, but when you factor in the time that you need to spend to build and maintain your own infrastructure Heroku "suddenly" looks like a very good deal.