It is always a good idea to keep a airpot along with you in a short trip like business trip for 2-3 days. I personally witness some people who always keep air pot while traveling but to my surprise, it is because they only love their home made coffee and they can carry and keep the coffee hot for long time with air pot. Only coffee lovers can tell the truth about the taste of coffee and they can easily differentiate the taste of different coffee.
Airpot coffee brewers/makers is another useful machine for making coffee and directly pouring the coffee into the air pots. So, suppose if you are going to a journey of 3-4 hours, then taking the coffee along with you in the air pot can keep you active and fresh with the aroma of your coffee throughout the journey. Also nowadays people prefer to use air pot to take coffee with them in the journey and therefore if you have coffee cafe, then having airpot coffee brewer or maker is always a good point which you should think about it.