There are alot (oh MAN are there alot) of stories about this place, as most people have heard by now. In fact most of us have been hearing about it on and off since the very early 90's when Bob Lazar went to the media about his alleged and contested experiences there.
Enthusiasts, truthseekers, and others just curious have dared to venture through the desert to the place some call "Dreamland" and report encountering many of the same things: conspicuously blunt signage, armed "camo dudes" in Jeeps and sunglasses, "mailboxes" in the middle of nowhere,", and a whole bunch of other oddities.
No doubt, some people dedicate alot of time to watching Area 51.
And then there was me while I was in Las Vegas the other week. I guess I'd list myself under the category of "curious". I pulled up alongside a "private" terminal reported to be the highly secure terminal for the "JANET" aircraft which alleged shuttle people from Las Vegas McCarran Airport to the "Area 51" base at Groom Lake and the Tonopah Test Site further north.
I can't tell you much more than what I already read on these sites, but I did observe that the arrival and departure times people note still seem fairly accurate. I showed up just after 3pm on a Tuesday (3/4/08) and caught the last few people getting off a "JANET" plane about the same time the one in my picture below taxied down the runway for take-off. As those people hit the parking lot, it was like a sudden rush hour. Those cars started streaming out of the secure lot onto Haven St and turning right onto Four Seasons Drive behind me to head to the Freeway. Likewise, I saw them stream in the next afternoon about 45 minutes before another JANET plane took off.