That makes a lot of sense, given how the game in the city was changing in 1868. The game was in the process of evolving from a past time, where the focus was on recreation and fun, into a sport, where the focus was on winning, competition, and making money. These tours that the big Eastern clubs were making was not just about playing the best clubs in the West and spreading the gospel of baseball but it was also about making some money on the road. The Western clubs not only wanted a shot at the Eastern club but they also wanted to bring in a big crowd. Note how the tickets for the Union/Buckeye match was fifty cents. Normally, a ticket to the Grand Avenue Grounds was twenty-five cents. So we see the local clubs bringing in some big name clubs and raising ticket prices for those games. And on top of that they're advertising the games for the first time, in an attempt to bring in even more customers.
People complain all of the time about how modern sports is just a business designed to suck money out of fans but the reality is that this is nothing new. It goes back at least to the immediate post-Civil War era and we see a bit of that in St. Louis in 1868.