the reason convenience stores almost NEVER close is because profit margins are HIGH. why do you think we have all the gas stations/convenience stores here in the US??? if they couldnt sell anything but gas, do you think you would see one everyother block? they learned a long time ago that there is almost absolutely no profit in gasoline unless you are pumping crude and selling it by the barge or refining it or all 3. ever wonder why you see gasoline sold in 1/10's of cents? its beacuse those 1/10's are generally the only profit a retailer for fuel makes i.e. why you dont see any stand alone gas stations in the us anymore
its obvious you either sold at a loss, are trying to get your 7's filled or you just decided to float around and bash a little looking at your posting history says it all.