Bull....
....Shit
I guess if you are into biker chicks, it helps, but no vehicle will GUARANTEE you women. It does help to have some kind of vehicle, because it simplifies logistics. I still kinda go with the South Park logic that if you ride a motorcycle for attention/coolness, you're a fag (in a non-homosexual sense).
Honestly, if you want to do it, and if you have a legitimate interest in bikes, then by all means go for it. There aren't enough people that just go after what they want in this world, anymore. But if you are only doing this to help get laid, I seriously suggest you reconsider. It's a lot of money, time, and effort that makes minimal difference in my opinion. At the very least, buy/have onhand a second helmet

. Not much point in a bike if you risk a chick's life takin her back to your place because you didn't have the cash leftover for a second helmet!