I don't think watching someone playing a video game from a few rows back seems the most fun.
i would, especially when it's a speedrunner or game i care about. would have loved to have been in the crowd during the super mario bros. 1 race, for instance. being in the crowd must have been way more intense than watching it on a computer screen, especially during moments like when one of the runners died. not saying i'd love EVERY run - i don't need to see a run of some game i don't give a crap about in the middle of the night when the hall is nearly empty. but there are some runs i'd definitely love to see in person.