Because gas stations don't scale. Even the "perfect" gas station -- one that had the cheapest, best tasting refreshments, the cheapest gas, the fanciest pumps,

Because gas stations don't scale. Even the "perfect" gas station -- one that had the cheapest, best tasting refreshments, the cheapest gas, the fanciest pumps, the friendliest attendants -- couldn't add new parking spaces and pumps every day in any kind of realistic manner. But software can scale. It can scale, theoretically, infinitely, meeting the needs of every single potential user on the planet -- if the software is good enough.