I'm just speaking for myself here. If someone really likes a Lamborghini, they can get one. I wouldn't, it's not my thing. Even if I were that into cars (which I'm not), I would rather have a fleet of vintage cars like Jay Leno than a Lambo.
As for a Rolex, I still think $50,000 is too much for a watch. And I'm sure there are better investments out there than buying watches.
Again, if someone wants one, they can get one. I have plenty of stupid toys I've bought myself that wouldn't make sense to other people. I didn't buy them to attract women though, which is the OP's question.