Because it was much harder to sing compared to the ballads they have. The high notes are on par with I Want You which was also a pig song to sing live. Also it sounds Aerosmith-ish
Kon Chauvi released a live version of it back in 1995, so Bon Jovi playing it live would've sounded somewhere near this (and I wish they had give it a shot at least once or twice back then): http://www43.zippyshare.com/v/pveTdaGx/file.html
