It’s a pretty good idea.  

Here’s the thing - we have to give away more tickets than we have seats.  Why?  Because believe it or not, some people will choose to just not show up.  I know, I know, we think it’s lame too.  Still, they do it.  So, we have to give away more tickets.  Well, sometimes, more people will show up than we have room for.  So, it would be better for you to be closer to the front of the line than the back, don’t ya think?  

Yeah.  It would.

Now, we don’t over-ticket by THOUSANDS of people or anything.  You seriously DO NOT need to be 2 hours early - that’s just going to make the day very long and tiring for you.  If you’re in line 45 minutes or so before the ticketed time, you should be fine.  But obviously, that's not a guarantee, since we can't predict WHEN people will start arriving.