Verizon prepaid used to be $45 for 1GB and $60 for 3GB, now their plans are:
$60 - 5GB, or 6GB with autopay.
$45 - 2GB, or 3GB with autopay.
$30 - No data, talk/text only.
Cost to add more data:
$5 - 500MB
$10 - 1GB
$20 - 3GB
You can't add data to the $30 plan for some reason, it's WiFi only...