Do any of the tripit alternatives track fare changes so when prices go down you can rebook at the new price? TripIt Pro claims to offer this, but I'm a TripIt Pro subscriber (through a company) and it's mostly useless - imports of emailed confirmations often don't pick up prices (and they often don't let you edit a flight; I have no idea what's the trigger for allowing edits and not allowing edits) and tripit thinks there's a $125 change fee for Alaska Airlines flights (that's obsolete; changes are mostly free for everyone).