Selling Southwest eGift cards, $210. ($100 x 2)
Delta eGift cards, $200. ($50 x 4)
Looking to get 88% for each, will do 86% if taking all $400. I'm somewhat new here but have had a few transactions, and have a significant trading history on Reddit's marketplace.
Note that the Delta cards are potentially very useful, as according to Flyertalk, the GC + Cash trick is still working for the Amex Platinum airline credit.