Back in my early days of driving (~10 yrs ago), I could find gas for as low as $0.69/gal, regular unleaded. Premium and super were always $0.10 and $0.20 higher, respectively. Fast forward to present day, and we’re paying around $2.80/gal, but premium and super are usually (but not always, I’ll admit) still $0.10 and $0.20 higher.
This seems like artificial pricing to me - the percentage difference between regular & super in my ‘old days’ example was ~30%, now it’s ~7%. Why isn’t super now $3.65? Alternatively, why wasn’t super $0.74? What’s the straight dope?