Well if anyone wants an example of the power of Facebook in today's world, well here it is Storm Area 51, They Can't Stop All of Us. Over 2 million people have signed up to go, although it is highly doubtful that anywhere that number will show up.
Even if an alien or evidence of any alien technology is there which I doubt, I am sure it will not be found. If it is there, it will be moved and/or hidden today. And I doubt that any of the demonstrators will get anywhere near the base. They are quite a distance from the wall, and the wall encloses an area of 8,000 sq miles. Area 51 is about 150 sq miles and is well inside this wall. The area is protected by many guards who are instructed to shoot to kill and people have been killed trying to break in. There are good reasons for the guards' concerns to keep people out as we do know that the area has highly toxic materials lying around and two people who work in Area 51, probably died from this. I just hope no-one gets hurt.
Still, it has proven to be a significant business event, many businesses and merchandise related to this event are on offer. If you have some items that fit such an event, you should put it in front as there is undoubtedly a lot of buzz about it.