I guess it depends on the mood of the crowd but there have been some truly electrifying moments at IWS and THF and the fan response was incredible. In 2009 the Cats played the BC Lions in the ESF and came from behind late in the game to tie it. The roar of the crowd was deafening and I still get goosebumps thinking of that moment. Another one was obviously the Ozzie kick in the 1998 EF.
I don't think Hamilton is as loud as Regina but we have more of a suppressed enthusiasm that comes out only for the right moment.