Glenn Fleishman directs our attention to the fact that despite the constant calls for in-flight broadband service, Portfolio notes that people just aren't interested in paying for it. Or at least that's the conclusion author Joe Brancatelli comes to, despite admitting in the piece that hard user numbers "are nearly impossible to come by." Neither the airlines or the major in-flight Wi-Fi players (Aircell and Row44) are willing to talk real numbers, though insiders are apparently willing to talk anonymously about a few things:One quoted analyst says there simply won't be enough users to fund the installation and network operation now -- or ever. The biggest in-flight broadband player, Aircell's GoGo, charges $12.95 on flights over 12 hours, $9.95 for flights between 1.5 and 3 hours, $5.95 for flights up to 1.5 hours, and between $6 and $8 for smartphone access. You have to think there is a business model here, but that we'll see several shakeouts before the companies involved figure out what the correct model is.