Sone folk have got the wrong impression of the use of the pressure cooker, thinking its a promotional act. To be shown how to use it by you the correct way is educational for some one who has never used one, and if one does not know how to use the pressure cooker or handle it the wrong way it will not be a good experience cooking. To understand that cooking in a pressure cooker cuts down the cooking time and the food cooked comes out very soft expecially meat or hard pulses Its economical too.Therefore, it will be cash well spent in these hard economic times. No doubt cooking on an open fire is ideal but some people may not be able to do it. Is there anything from stopping them from using the pressure cooker on an open fire! Does the manufacturer say not to?