The Tile App via eBay offers the 1st-generation Tile Mate and Tile Slim Combo 4-Pack for $29.99 with free shipping. That's tied with our mention from two weeks ago and is the lowest price we could find now by $19. Note: This item is new and factory-sealed, but may come in imperfect packaging. It is the 1st-gen model with non-replaceable batteries.
There are plenty of great ways to spend your money, but you can safely leave these products on the store shelf.