I currently own on the order of 10 domain names. All of my DNS serving for the past few years had been performed by DynDNS, and it was free.
A couple of months back, they changed that situation and wanted to charge me $20/domain/year. Feeling that this was highway robbery, I decided to switch DNS providers. At the time, I heard about Amazon's Route 53, so I signed up for an AWS account. Unfortunately due to laziness on my part and a lack of any web UI on their part, that transition never happened.
So a couple of weeks back, a new service called DNSimple came across my Twitter feed. For my number of domains, their DNS service is $36/year. This is a no-brainer.
Last night, I completed the transition. If you have had problems accessing this site since about 10pm Central Time last night (November 30), this change is likely why. My apologies for the lack of notice on the switch; I have been forgetting about it, being lazy, and suddenly found myself up against a December 1 deadline before the $200 charge kicked in. Procrastination FTW.
Email to multiple domains that I own is still working, and I can still reach all of my domains, so it looks to me like the transition was successful.
Let me know if there are any ongoing issues.