God is Spirit [Jn. 4:22] and as such He makes Himself known through His creation. Through the pinnacle of his creation - man - He manifests His nature, described by John by one word: love [1 Jn 4:18]. God is love, and so in the same way trees bear fruit through their branches, Christ in us bears His fruit [Gal. 5:22-23] through His 'branches' - His body, the church. In His own words: "By this all men will know that you are My disciples, because you have love one for another" [Jn 13:35].
This agape love [1 Cor 13, the famous 'love chapter'] is the fruit that we bear, and thus the church expresses its inner life like the vine, its hidden resources through its branches. The branches do not themselves produce the fruit; they bear fruit because of their abiding in the vine.
So the question "What is the point of going to church?" is really a non-question... the true question is "What is the point of being the church?"