I guess the question is Cost of Customer Acquisition going to be cheaper LTV?

I wonder what the economics of travel commissions are... If you get 5% of whatever it costs to book a vacation... and people are booking $1000 vacations ... that's $50.

And assume that 1% of visitors who visit the site end up using us to book a vacation thats 50 cents a user.

And I think you can target YUPpies on Facebook for around that

Of course, if the product's design is really compelling (crucial), it will be social/viral, people will use it when they're bored.