I've got maybe two friends who I think I could rely upon, I've got other friends who I think I'm close to but I wouldnt rely on or expect to behave reliably or dependably in any sort of serious manner. Lots of acquaintences and a few facebook friends.
I once heard someone coin the phrase "facebook friend" meaning an acquaintence in the modern sense, this could be someone who you met on the internet as much as someone you've actually had anything to do with in person but the important thing is that the expectations are different.
They suggested, for instance, that if a tree fell on your house it wouldnt be the facebook friends that you could call on, not because they arent good friends or because their friendship was superficial, only that it wasnt that sort of friendship. So I wouldnt say it was less real or demean it but it is different, tangibly so.
I can pick up friends easily, although I find its not feasible to service more than maybe four or five good friendships and there's no guarantee that it'll be reciprocated, not because of ill will but because not a lot of people will be able to prioritise it, they'll have family or dilemmas of their own.