If the universe always existed, that seems to set better with folks than asking if God always existed. Folks usually ask "Who created God?" but never seem to mind the fact that a singularity was sitting around for eternity until the explosion.
Of course, some theorists see an oscillating universe with endless expansion/contraction phases. The human brain is ever questioning and ever doubting.
Cavediver, if the universe had no beginning, what is the purpose of our lives if we may someday be compressed back into a singularity?