Are kombini food on the expensive side, or is it just me?

Usually I'm just in a 711/FamilyMart/Lawsons to grab a couple of onigiris, a drink, and sometimes a famichiki or small salad. The total runs anywhere from 500jpy to sometimes almost 1500yen.

Meanwhile I can go to a place like Sukiya/Matsuya and get basically a full meal (gyudon + soup + salad) that's [mostly] freshly cooked for like 800jpy.

It's either convenience store food is marked up for the convenience, or places like Sukiya have their supply chain/operations dialed in to offer abnormally low prices, right?

by PursuingGemini