[benologist]

Migrating DNS is easy:

1) Get a new DNS server. I use http://dnspark.net/ and even though their website is very ugly and there's no API, they're tremendous value at $10 - $14 per year

2) In your registrar's page (godaddy) change your DNS servers for your domain to whatever your new ones are.

[dvanduzer]

Route53 is currently $6+ per year per domain.

[singlow]

$0.50 per hosted zone / month for the first 25 hosted zones $0.10 per hosted zone / month for additional hosted zones

$0.500 per million queries – first 1 Billion queries / month $0.250 per million queries – over 1 Billion queries / month

I host about 70 zones and pay less than 20 dollars a month. There's no minimum, so I would expect a single zone to cost less than $2. You would need to get 10 million queries to reach $6.

[Edit: Facepalm - I just realized you said per year]

[benologist]

It's variable though, if you're a small site that's going to work in your favor especially if you already build on AWS.

DNSPark gives you 5m lookups a month and never built in overage charging!