Of course as the cost of the food items goes up so does the sale price of the pepper and stuff you get from the tokens.

For clarity you should point out that first you have to have cooking somewhere over 500, then do some five quests "master of the wok" or something etc. then do some small quest from the same npc then you can finally do the grocery bag turn ins.

The guards do attack anyone who attacks you, but ya I can see where a pvp server is going to have some well ... pvp.