You gain, you lose.

When you gain something, you are bound to lose something.
You might gain something. But when you look back, what are you missing out.
Look around, are you causing harm to anyone or yourself? Or neglect them?

Take for example,

Smoking. Gain 7 mins of pleasure, make people around you suffer, the environment and also, yourself.

Friends. You are busy with your stuff. Trying hard to make the best out of your life.
Are you missing out something in your life called, friends?
You might made new friends, enjoying like nobody business. How about those that WERE/ARE suppose to be your friends, are you still in contact with them? Or maybe for the sake of calling them "friends" thats why you contact them?

Family. You enjoy all your stuff. Going out with friends. Working. GF/BF. Do you even know about what your parent(s) are doing? You sleep before they wake up and go work. You go out when before they are back. A cycle.

If you are able to maintain all the things around you in a proper manner. Good for you! Its not easy at all.
If you think the gaining part is more important than losing or say more worth it, even better!
Its up to you.