But people won't do that because prizes won't be worth enough to compensate it. If prizes are large enough, it will imply these events will be held once in a blue moon, which would be shit.
Considering most event prizes consist of a couple of gift boxes and a pat on the back, what makes you think GMs are suddenly going to give 9 figure zeny prizes away (9 digits being 100 mil? /swt)? You countered the "lame" argument with the assumption that prizes are suddenly going to take an enormous leap in value.