I must agree with the above post. As one of those business flyers, I am not in a position to simply buy the unrestricted fare at will. I have to guess the only people that do are able to expense costs to their clients (lawyers, etc.) For probably 90% of business travlers out there, its hard cash for the company, so they want the cheapest tickets - not my choice, and change fees only are reimbursable *if* is saves at least as much in hotel charges (ie cut a trip short a day - yeah right.)
However, flying the better part of 100,000 miles a year leaves me to desire *some* level of recognition by the airline, namely some grace, at least periodically, for flexibility.
I would suggest follow TWA's old policy, and CO/NW's current upgrade policy, make them free based on FF seniority and issue those damn 10,000 miles upgrade credits for complimentary stand-by and changes and not simply for a larger seat.
If I could stash some free change fees and get home earlier after a meeting (since like most, I often fly home late on Friday night from business and always need to plan for last flight out), then I become a much happier and content customer if it doesn't cost me $100 to be able to tuck my children in that night, and a lot less likely to use WN where such changes are basically mindless.