Small sneaker dealers vs Ebay Amazon Walmart etc..

I'm looking to get a pair of white and green (stripes) Adidas OG Country. I've always wanted them so finally decided to save up and get a pair. I've seen a few sites off of Google Shopping that have them cheaper ($80ish) than Ebay, Amazon, etc..($125ish)As an Ebay store owner (not for shoes) I trust that it but am unfamiliar with these other stores (kickscrew and lyst). Do I go with tried and true or save some money on these types of sites?