Not in most cases -- certainly not for the IFE alone with that price differential. But not everybody buys on price alone. If someone who is familiar with both brands were flying on a transcon, they might pay $325 for 34" of pitch on B6 instead of $198 for 31" of pitch on US. And (correct me if I am wrong on the pricing) for another $50 or $60 or so each way they could have 38" of pitch. Those extra inches are very valuable on a transcon to someone who is not so price sensitive & is looking for a good value. Oh....and the IFE is an added bonus.....as is the water and Terra Blue chips (or whatever they're called). Not everybody finds value in extra seat pitch, so US definitely would have an advantage over B6 with many (but not all) customers at those price points.
I have stated many times on this board that US is entitled to provide and price their product in any manner which they see fit to maximize revenue. By the same token, customers are just as entitled to choose what airline to fly with based upon factors which are important to them. I personally think that IFE is a value-added service which enhances an airline's brand. By US not offering it right now in any form on transcons I believe that they are losing market share to their competitors.
