These are items are big and once build you cannot move them, so be careful when you make them.
Food is essential and some are better for you than others but all are useful in some way so its good when you found something great.
Material is all the items that don't fit in the others but that does not mean they are not useful.
Where food can't help or just some bad luck Med's can help you when your on deaths door. but don't take to much else you push yourself over the limit.
Well first man walked well there are some cool looking vehicles and some may not look great but hey I can take a whole city with me.
Well Noobland may be safe but in the wastelands you are going to need more than just your fists to avoid death.