Intrigued ? Perhaps ... but not with the possibility of anything extraterrestrial being hidden there.
It's no big secret that the global arms race is still going strong and the US always liked to be in front. What I believe area 51 to be is simply an experimental science or weapon facility (or a facade to draw unwanted attention away from other places). This also easily explains some of those so called 'UFO sightings'. The fact that we use fairly known and publicly-introduced weaponry on battlefields doesn't mean that things far more advanced and uncommon exist.
If you presented the
SR-71 Blackbird along with it's performance data to people in 1964 (the year it took it's first flight) I'm fairly sure a ton of them wouldn't believe it to be manmade.