Tickets for Game 7 of the World Series were not cheap.
For proof, check out this ungodly sum of money that four people paid to sit behind home plate to see the Houston Astros and Los Angeles Dodgers compete for baseball’s greatest prize......
It's worth noting that this was paid before the end of Game 6.$71,995: Price just paid, on StubHub, for four seats behind home plate for Game 7 at Dodger Stadium, including fees
Here is an article about the ticket prices.