Stonehenge a Burial Site?

A group of archeologists recently found out that Stonehenge was a burial site, 500 years prior to the first megaliths being erected in 2,500 BC. This discovery sheds some light over this mysterious man-made formation, which is said to be a place of healing and/or a place to honor the dead. So the recent discovery will corroborate the part of honoring the dead.

I don't think that this is the sole purpose of this "sanctuary". I don't believe that 4,500 years ago, people would go on such lenghts to carry stones weighting around 4 tons from miles (160 aprox-250 km) away juts for a burial site. Anyway, I believe there is more to these stone circles than meets the eyes, or maybe not.