You don't get to keep this gift, it's an advertisement. From a corporate company.
We're all avid gamers here, we're all big fans of the products produced by said corporate companies, enough to come to a place dedicated to said products.
To pretend marketing can't be fun is just silly. E3 is a marketing event and look at how excited everyone would get when it rolled around. Hours and hours of youtube videos, TV shows, Twitch streams etc etc. It's a marketing event, but it's fun.
When people think about some of their favorite game trailers, part of it is the surprise of not knowing what it is. Trailers are purposefully shot this way because it's more exciting. Like if we knew every Smash character before the announcements, they wouldn't be as fun. Of course we'd still enjoy the game but the hype cycle itself is fun.
And yes, corporate companies provide entertainment