To me, it's always hard to choose because, basically, they always have two criteria, and the one option satisfies one criterion and the other option satisfies the other. So they're equally good (or bad) options, and to make an argument you more or less have to claim that one criterion isn't as important. I went with the tour, because the run hadn't attracted many new members in the past, we know that it can't be working because they're still looking to get new members, most of the people who did the run were from out of town, and common sense tells you that only so many people are going to want to do a 5K run, especially if it isn't underwritten by some charity. The tour does cost a lot, but it will attract way more new members and the dues they pay will ultimately make up for the cost. Then again, one could argue it's a misuse of a neighborhood association's funds to spend its whole budget on what's essentially a membership drive when they could be bettering the neighborhood, and so cost should predominate over which event will draw more members.