The best seats in the house are selling on StubHub for $50,000 EACH (Dugout Club, right behind home plate) -- and the cheapest tickets (upper, upper level) are still hovering around $1,000.

So, if you're gonna buy seats ... ya gotta have bread.

Enter DJ Diplo -- who reportedly made $28.5 MILLION in 2017 -- and happens to be a huge Dodgers fan.

We got him leaving Mastro's in Bev Hills after Game 6 -- and he told us he'll 100% be at the game. Price didn't seem to be a concern.