Sometimes people choose to hold a celebration of life instead of funeral after a family member passes away, the survivors may want to offer this type of event to celebrate the deceased rather than have a more somber funeral.
This decision is often based on the personality and requests of the deceased, but not always. Some people want their friends and family to turn their passing into a party. Other times, it's simply a way for everyone to get together after time has passed to celebrate the deceased person's life. We choose to Celebrate. :)