Let me explain it this way. A society that has mastered intergalactic travel is not going to fly to earth, and crash in the desert.
Good point.
I'm sure you've read the stories about the US gov't capturing alien craft and reverse-engineering them to build their own. Perhaps they did that, and a lot of those early prototypes crashed. Dunno.
On the other hand, who knows what sort of hardware failures might befall a UFO? A lot of people don't believe that those craft are for interstellar travel, but are only for interplanetary and close-earth use anyway. It's entirely possible that something in our atmosphere could interrupt their guidance systems, etc.
There were a lot of reports of crashed saucers in the 40's, but fewer and fewer as time went by. Perhaps our visitors sorted out what was interfering with their guidance systems and fixed it.
Interesting stuff to contemplate.
I think the whole Roswell thing is a scam and I’ll explain why. First, like I said a technologically advanced race is not going to come here. And if they do come here, they are not going to smash into the desert. It defies logic.
Now it’s 1947. World War II has just ended and the cold war is just getting started. I’m seeing communists everywhere and the Russians already have my nuke secrets. The Rosenbergs taught me a hard lesson. Now I’m out in the desert playing with high tech stuff and it works. (or fails miserably) And people see stuff. The media gets wind of it. However you look at it, the secret is out and it wont be contained for long. So, my options are to misdirect and confuse. I plant evidence of a coverup. I plant false stories and fake evidence and then deny that evidence. It works because I know the people have an inherent mistrust of the government and the more I deny, the more you believe. In the end, I’ve got you so confused you don’t know what to believe. You will believe the alien story because its far more exciting than the mundane truth. You are looking for aliens and while I’m off quietly working on deep black projects. It works because people so desperately want to believe they are not alone.
Well, my comment would be that not every stellar exploit is a success.
Also consider if the vehicle is manufactured by Earth's equivelent of "union labor".