https://www.ebay.com/b/Oscilloscopes-Vectorscopes/104247/bn_7748344?rt=nc&_sop=15
This issue is not limited to this category, it is widespread on eBay now.
Sellers are listing multiple products/accessories under a single listing with a wide range of prices. So in this example you can see product listed as approximately: $1.69 - $26.89 In other examples, products will fall in between and the low priced item will be out of stock but still reflected in the search pricing.
This obscures the true price of the items, especially those listings with 3 or more products and those partially out of stock. This make the low price sorts and the price filters worthless.
