GeoPowerTools

I think that you are actually onto something. It does take more work to earn a smiley with a Wherigo. The experience needs to be a good one for it to be worth the effort to complete the cartridge. Unfortunately, although anyone can drop a film can with a log in it, a fun and interactive cartridge takes a lot more work. There is a certain amount of skill involved that not every hider will possess. A lot of Wherigos are lame... very few are actually worth the effort to play.