If you're really looking for a serious answer in this, here it is: The 737-500 is more economcal to operate than the 717 because they are not leased. They are long since paid for. As long as the maintenance costs don't exceed operating revenue (so far), then they make money. And since we have the world's largest stockpile of 737 classic parts, and similar maintenance schedules to the rest of our planes, it'll be that way for a while.
Bubba[/QUOT
Actually nine are leased. Form the 10Q
http://filecache.drivetheweb.com/ir1_southwest/408/download/10Q+Filed+4.25.12.pdf
Wow, good for you for searching through all of that. I stand corrected. MOST of them are owned outright. But I presume that the leased ones are at rates considered attractive by SWA. One of the chiefs told me that we have some planes that we owned, then sold to someone else with a lease-back provision. I don't know if those nine -500s fit into this category or not, but I presume someone smarter than your average pilot figured it was a good financial deal for us.
But, as pointed out by someone else above, they're gonna' go away relatively soon as well. The trick to which -300s and -500s we're planning on keeping any length of time is whether they've had winglets added. The number-crunchers have to be sure we're keeping a particular plane long enough to make that particular cost pay off. The ones without winglets are leaving first. None of our -500s have winglets.
Thanks for the info.
Bubba