Littlestone,
I reckon everyone on this site would really love to have the experience of seeing it as it was, and to have the chance to walk amongst the original Stonehenge (original as in when all the trilithons were erected). As it is we'll just have to be content with reconstructions in the form of the likes of Foamhenge, which would be best added to the proposed visitor centre, well away from Stonehhenge. How educational would that be? Plus it'd probably satisfy a good many casual tourists, who would then not bother going to the real stones, thus relieving the environmental pressures.
Regards,
TE.