Buildings are built for many different reasons. Shops are built for a place to work and build or manufacture things. Barns are built to shelter animals and feed. Houses are built for people to live in and castles are built for the rich and famous. The value of a building is determined by what is put into it: the cost, what kind of materials were used and the purpose it is built for.
Why did God create us anyway? Colossians 1:16 tells us, “For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers; all things were created by him, and for him:”.
So we were created by Him and for Him. What was in God’s heart and mind that caused Him to make creatures like us? Did He need slaves to work for Him? No, because God put Adam and Eve, our first parents, in a perfect environment: perfect climate, all the food they needed readily available and just enough responsibility to keep life interesting was theirs to enjoy. God and man had perfect fellowship in that perfect setting. They could openly and freely communicate with each other.
Revelation 4:11 sums it up well, “Thou art worthy, O Lord, to receive glory and honour and power: for thou hast created all things, and for thy pleasure they are and were created.”
Let There Be Life 