Wow!! We have soooo much in common!

I recently caught up with a guy friend of mine, who was telling me about this girl he's interested in. By interested, he made it clear that there would be a significant investment of time before he could "seal the deal." In the same breath, however, Guy was talking about "wife-ing her up." Now, isn't that sort of an oxymoron? Perhaps to a female it is, but for a male, completely normal. I wouldn't want a guy discussing how long it's going to take to get in my pants, all the while wondering what I'd look like wearing a veil and a wedding band. I mean, that doesn't go together, right?
Moreover, I think it's hysterical the lengths guys will go, to get the attention of their prey. Yes, I mean prey. Sure, I stalk people and am not the least bit ashamed to say it. I like to know what's going on - and even though it doesn't DO anything for me to know people's business - I just LIKE it, I can't explain it any other way. The company I was with this weekend discussed this topic ad nauseum, and Brianne completely agreed with me. That's just one way men and women vary.
In any event, I learned that men are crazier than women sometimes. In fact, Guy goes as far as checking Girl's facebook page, learns what Girl likes, brings up in conversation with Girl. Girl gushes, "Oh!! I didn't know you liked/thought/felt this way, too!!!" And voila - you have something in common...but really, you don't.
SO - to get your foot in the door, do you think this sort of Stalksycology is okay or wrong? Does the foundation of the relationship you're interesed in creating become a farse? Or, is it a really great tactic and I'm completely naiive because many people do the same?
Like I said, I've "stalked" before, but never have I attemped to pretend I had similar interests with a man, for the end goal of any type of relation formation.

Discuss.