There must be some point or goal to being Buddhist, imo...
If it is a rational pursuit, which I believe it is...
It involves a choice at some point. According to psychology people make decisions to receive some benefit, whether material or spiritual.
Take altruism for example...it seems as though it is a selfless act. I don't believe in selfless acts, although I would consider myself an altruist. It's a conscious decision.
That's why I meditate, but am not a Buddhist. I meditate with a specific goal in mind: To improve my body and mind. I feel that if I keep this goal in mind I will more readily attain it.
You ask the best questions, seriously:)
The benefit of being a Buddhist is that perhaps, no promises, it will make us better, more thoughtful beings. We hopefully learn too that it's more logical to be nice to other people, even forgetting the moral and social implications that has. But, if we turn this into a goal, 'I wish I could be a better Buddhist and be calmer and be seen as a nice person so people will be nice to me too', then that's missing the point. Worrying about how good you become, or setting goals in levels of piety is another prison, not freedom. We do what we do and trust we're better for it. We're not looking for a pat on the head in return, that too is a prison.
I have to say that I have met people who've become Buddhists (exclusively we westerners:) in an attempt to show how good they are, and they use it like a badge of apparent morality. But on the whole, we're altruistic simply because it's a better way to be, not because we hope it will give us points to get into heaven or so that we can be seen as better people than anyone else. We recognise our faults and try to balance them with good, simply because it's daft not to. It's not adult to keep doing bad things and not care, so we try to redress the balance when we can. I've got no idea whether that makes us altruistic or not, some Buddhists are, some aren't, it would depend on the Buddhist and what his personal aims were and his personal reasons for doing good.
Meditation is one of 3 tools in Buddhism that we can use to help us become calmer, so yes, there is the apparent goal of reaching calm in using these things. But actually NOT having any goals in meditation is what will help us reach calm more quickly. I know it sounds counter-intuitive, but meditation done with any direct aims can never, ever be as deep as it could without aims. The state we MAY return to in practice is entirely devoid of intent and goals. Think of this like us hoping to return to a natural state of awareness that's inherent in us already. We're not creating anything, going ever deeper into concentration, but regaining a natural mind.The idea is to lose all forms of intent, forward thinking, goal-seeking in terms of how deep a level of concentration you hope to reach, how non-conceptual you hope to become, etc. Even forgetting how much deeper mediation is without aims, if we judge a meditation session as good or bad because we haven't reached a particular level of concentration, puts more stress on us of the kind that we're trying to let go of. We sit, do our best, walk away.
But, this kind of thing may or may not apply to your approach at all. As you might not be wanting to sit in the same state as we do, with the same effects, trying to get rid of intent from meditation isn't something you need to do. There are no rules for us, if your meditation works for you then its just as powerful and useful as anything in Buddhism. If it calms your mind to the degree you want, what the hell, who cares?
We want you to have the best methods at your disposal, whether they're Buddhist, Christian, Moslem or 'Toker:) You have a goal and a need, you're fulfilling it, what could be better?