Lots of "experts" said SLC would close for Delta after their merger and that hub is still going on.
If you close PHX you give up the ity to SWA. I don't see that happening. MayDaze makes most of the other good points. PHX has a lot of hi tech companies with operations here. There is a strong business market in addition to the large leisure market.
PHX also provides a lot of longer routes to other cities. If you take PHX out of the mix in our present operation the average stage length would go way down which drives up your costs. Kind of why the old US Air had a difficult time before. Short stage lengths and high costs do not work well anymore. Our load factors have been very strong out of here, which may be a factor of what fares are sold, but indicates that we do have a healthy market here.
We really do not know, however, so we will have to see what transpires. I am still only at 75% personally for believing this will all go through.