My opinion, GenieGo is an excellent device to take shows with you for watching on a phone or tablet or PC.
I use GenieGo all the time on airplanes. The way I see it (no pun intended), I could pay an airline $7.99 per trip/direction for a few hours of crappy TV on a small hard to see screen with fingerprints plus extra $ for PPV. Or transfer my favorite shows and movies from my DVR, watch them on 7' to 15" screens at no additional charge at 35K feet.
Its not HD but on 7" to 15" screens the quality is very good. And free after a one time investment.
I totally agree with your assessment on the GenieGo. I travel very often and this thing makes the travel time so much more nicer.