A friend of mine went on the hajj in college said it was a very valuable experience
Of course this was before the Saudis tore down pre-Islamic buildings near the Kaba to turn Mecca into Holy Vegas
With the blessing (*ahem*) of the Wahhabist clerics who have a theologically*-driven obsession with
destroying everything in the Kingdom that could even
potentially be a site of idolatry.
*Though doing so also cements the Wahhabists' power and influence within (Sunni) Islam generally and Saudi society particularly.