The data standardization within Google Product Search has put like products from very large retailers capable of deep discounts in the same page product lineup with smaller merchants who cannot compete on price. The smaller merchants who would generally seek to make their listing somewhat unique to grab longtail product searches can no longer do that. Smaller merchants in the product lineup with Pet Smart for example, have few options to elicit a click from a searcher.
My best advice to eBay merchants looking to move some of their business to the more stable ecommerce platform is to completely “unthink” the eBay and get some help. Find a professional ecommerce developer and listen to everything they tell you…. Even if it goes against your eBay grain.