The reason for the discrepancy? Some analysts say cost. It seems you want the WiFi, but you don't want to pay a hefty chunk of change to access it. And I hear you on that one — with some airlines charging up to $15 for a few hours of access, it doesn't really seem worth it if you're only checking your email or surfing blogs. Industry experts say even that small percentage could amount to one-off users who have a coupon or discount, instead of customers who log in flight after flight. Tell me — do you use in-flight WiFi when you travel?