So we currently ship around 10GB a month, and it costs us $75 a month from Papertrail. Cost is really a non factor, wouldn't matter if is cost us $200. The ability to search and grep older documents is a bit slow on Papertrail though. Additionally, sending deeply nested JSON, and being able to search on props would be huge.

Does LogDNA have a shipper from syslog? Do you have a node.js client lib?

Finally can you talk about security? Is traffic encrypted over the wire? Do you encrypted disks at rest?