While the goal of Christianity is salvation - you follow God’s commandments/Christ’s teaching in order to go to heaven after you die rather than face the fires of hell or land in limbo - the goal of Judaism is very different. Its goal is for you to walk the path of God both to honor God and because it’s just the way to conduct oneself. Judaism is all about the here and now. While there is a Jewish afterlife, it is rarely discussed in modern Judaism.
Another way of explaining the goal of Judaism is to say that God wants you to be a “mensch.” Mensch is a Yiddish word that basically means a decent human being, someone who acts with kindness towards his fellow man and leads an ethical life. This has in modern times become more of a social inheritance than a religious one. For example, I definitely learned to be a mensch from my parents, not from my involvement with Judaism as a youth. This is basically why most Jews are Democrats; they have a more liberal, caring disposition to the lot of their fellow man.
But being a mensch, regardless of how decent you are, does not free you from psychic suffering. That’s where Buddhism comes in. The goal of Buddhism is to end our suffering. (See my post, “The Goal of Buddhism.”)
I should note that Kabbalah, the mystical tradition of Judaism, teaches much the same lesson as Buddhism, but I was never exposed to Kabbalah and regardless, I do not believe in the God of my forefathers, a God who you pray to, who secures things for you, who manipulates the world, and so I could never involve myself in Jewish practice and prayer.
Now one could say that if you walk the Buddhist path, you are a decent human being. If you follow the Five Precepts and the Six Paramitas you certainly are. But there is an emotional side, a passion, to being a mensch that does not exist, I believe, in Buddhism. A Jew, a mensch, is anything but dispassionate.
A Buddhist, if he successfully walks the path, views all things with dispassion. But while I view virtually all things with dispassion, and am very grateful for that because it is an important aspect of freeing myself from my ego-mind and suffering, I maintain the passion of a mensch regarding the work that I do to help others.
I thus can think of no more satisfying existence than being a combination of a mensch and a Buddhist.