Let me preface this reply by stating that I no longer work for US Airways or any of its' affiliate companies. My current job is in management for a major rental car company, and many of our customers arrive on flights operated by US Airway or an affiliate carrier. They often arrive at the rental counter pissed off due to problems they have had with US, whether it involves flight irregularities, service issues, or baggage problems. They are generally very unhappy. Rarely do I hear the same tales of woe from customers who have arrived on CO, DL, UA, WN, B6, FL, or AA. What this leads me to believe is that business people only fly US because they have no other viable choice from their point of departure.
The truth of the matter is that US Airways used to be a good company that was aiming to be at least as good as or better than CO, UA, and DL, and the employees tried to make sure their customers had a good experience. Ever since the company fell under the control of America West management, it has gone seriously downhill. Mr. Parker may be very good at attracting capital and keeping the bills paid, but he seriously sucks at leading the employees to make US Airways even a mediocre airline.
With all of that said, there is no value in US Airways as it now stands. As the old and tired cliche' often says, "The Emperor has no clothes". The only way US Airways will ever be involved in a merger transaction will be due to luck, and another carrier wanting to purchase US capacity and then close down the US operation to grow their own market share. The end game has been coming for many years, and it will be sad to see US go away, but it will be an event that is way past its' time.
If I were still employed by US Airways, I would be planning ahead for the day when the operation comes to a close, because that is the only logical conclusion that comes to mind. Good luck to you all because the end is nigh.