were exactly?
The only things you might 'need' from a 'kosher supermarket are certain meats, and certain CY/PY items.
All other dry goods, produce, household, etc can be purchased online at any retailer.
Amazon, Walmart, Costco, Target, ShopRite, Aldi, Kroger, Trader Joe's etc.
You'd be surprised how much kosher is out there, and how most people outside NY/NJ mangage.
GG is a convenient and luxurious shopping experience. It's a free market and they can charge whatever they'd like. You are free to shop anywhere!