In an airport on my way home, I saw a sign asking Chicagoans to adopt a pet. Every Halloween we spend money on pet costumes comparable to what we spend on missions to the unreached.
I hear people belabor this point, as if perhaps we should outlaw pet costumes and force people to fund missions.
The problem isn't that pet adoptions or costumes are bad and mission is good. It's not that easy. We spend a lot of money on things of the moment--things that give us a fleeting amount of happiness. God even allowed for this (for an interesting example see Deuteronomy 14, esp. vs 26).
The problem is that what we spend money on tells us a more compelling story than mission to the unreached largely does.
If we want to see more praying, giving, going perhaps the most straightforward solution is to tell more compelling stories.