Thanks to the match alerts, I found this user that had a few 2017-18 Upper Deck cards that I needed for my set and also needed some of my doubles. I told him I would do it as a PWE trade if he was interested and he was good with that.
I'm going to be smarter with my trades going forward. It makes no sense to spend $3 to send out a trade when the cards that I'm getting back I wouldn't pay $3 for at a card show. I see a lot of the PWE trades in 2018.
If you shop online and haven't signed up and used ebates yet, you're missing out. I also use it on eBay to get money back from purchases there. Between referrals and cash back, I've gotten over $150 in a year (including $15 back on one Black Friday purchase last week). FREE CARDS!