Nope, 30 hours is way out of whack. 10, perhaps, on the high end.
Usually it's your ISP throttling such stuff or a clog in the internet somewhere. If it says "Update Complete," does it have a Play button? If so, you're good to go. If it seems to be still downloading, click cancel (tiny letters under the play button), then restart it.
When in doubt re-start the launcher.
Another thing that's worked for a lot of people is to use the beta Station Launcher. http://eq2players.station.sony.com/news_archive_content.vm?id=1828§ion=News&locale=en_US
I promise, this initial download is as bad as it ever gets... and it's worth the wait.