TB- it all depends on your expectations- the higher your expectation is,  the bigger chance of disappointment ( when it turned out differently to what you expected).

Virtual Friends- We never met them or probably won’t, but this what allows you to pour your feelings to them., and we dont think much of them when we are off line and probably won't be too disappointed to lose them.

Real Life Friends- people that you get to see often (or at least you know that is existing and you can call them anytime) The thing about them is that they make it a point to keep in touch with you because they actually do miss you, and they really want to spend time with you and know what’s up with your life, and share with you theirs.

Both "friendsheeps" (lol) are beneficial... so it really depends on you on how to keep that friendship alive ;)