What makes a biker???

Several people in my neighborhood have bought Harley Davidson's over the past year. Just because you buy the bike and the gear, does that make you a biker? Isn't it more an attitude than the ability to buy a bike? Would a biker drive home in his $50,000 SUV, change out of his shirt and tie to ride his bike?

I'm sure they probably consider themselves to be "a biker". Can you really buy the attitude or are you just faking it? What does that say for you?