Sounds like its time for them to raise prices past what they deem to be a reasonable rise. Other restaurants in the area will likely do the same, and not pricing yourself to match can cause a drop in business as people seem to think the more they pay the better the quality (especially when your service or offering is priced on the low end of the market).
You might look at this and say charging $4 for X item is already at the edge of reasonable, but when your neighboring restaurants are already at $6 to $8 there is little reason to offer screaming deals. Its just a sign that its time to reprice to $7 to $8 for your own offerings, providing more profit to interest the dual owners moving forward. Reducing hours would also be a good idea for a owner operated business like this!
You might look at this and say charging $4 for X item is already at the edge of reasonable, but when your neighboring restaurants are already at $6 to $8 there is little reason to offer screaming deals. Its just a sign that its time to reprice to $7 to $8 for your own offerings, providing more profit to interest the dual owners moving forward. Reducing hours would also be a good idea for a owner operated business like this!