I hear you and I think it is a matter of what you are used to. If you are used to an 8 hour game then it won't seem long but if you are used to a 3 hour baseball game and it takes 6, it seems long. 

grayruby

Stacker_Sports

Recalling the time I attended a 6 hour and 13 minute Baseball game

"So how on earth do people watch cricket for 8 straight hours without getting bored?"

The answer is relativelly easy and simple...we are not the same (ant this is one of the most beautiful thing in our life imo)...someones like baseball, someones cricket...and someones other sports/hobbies :)