All fair points! Though I'd argue that ecommerce has been challenging—Zulilly went from IPO to salvage sale in about a year, compared to that Wayfair's slow but steady growth is a success!

The TripAdvisor/Yelp comp is great—they're direct competitors. TA also didn't really launch in its current form until 2002 so it's not as unfair as it appears on first glance!