The Perfect Gift for Father's Day

How does spending a day with your son traveling to a new place sound? Or maybe hunting together? Or shopping? Well one of thr guys I work work with did all of that with his son. SO what's the big deal?... they did it all playing World of Warcraft! That's right, junior took dad hunting to get him a high-level vest for one of his alt characters. Right from the convenience of their home, father and son spent the day doing stuff together, learning a little about each other, and fereling appreciated. No "real" economy was affected, no "real" animals were harmed and no natural resources like gasoline were expended.
Sounds good for the family, but what about commerce in real life? I don't think you neighborhood mega-mall or gas station will measure any significant hit from stay-at-home WoW adventurers - but will this trend grow and eventually make a few points of difference in sales after all? If 400,000 WoW players (5%) spent the day at home online, someone might notice. A game like Second Life provides a space that's more suited for providing a branded experience in that world if people chose to spend their holiday weekends there, but how does Macy*s participate in a combat/fantasy MMOG economy and not be out of place in that environment? I may not seem urgent to figure this out now, but now might be a good time to speculate and trying some stuff out for when it really does matter.