I don’t know for certain how the secondary markets for ticket purchases works (Travelocity etal) but I do know from personal experience JB refused to refund my purchase price for April flights they cancelled. Having been pretty sure of the law in these situations, I politely argued with them, not really wanting a travel voucher, and after the third or fourth phone call and prolonged waits on hold, along with discussions with Supervisors, they finally agreed to refund my money but only after I cited chapter and verse of the DOT rules regarding refunds. About a month after all this transpired there was a news blurb from Elaine Chou (sp?) saying the like kind refunds were mandatory when the airline made the cancellations,

And another thought - I’ve been watching a specific November one way lowest fare flight since the dates were listed on their site and so far it’s gone up in price $35.00 or 3100 JB points with only four seats sold. Price clearly not dictated by theory of supply and demand.