I went to two area well-known stores to find replacement swings, and I wasn't able to find any swings to purchase.  Because I was going to have to buy them online anyway, I decided to go with Wayfair.  The swings were well-priced and delivered for free with other things I purchased!

Pros: yellow-coated chain to protect from weathering, ready to go right out of the box, shipped sooner than expected!
Cons: None, yet!