Saving 100 bucks when buying a tripod can easily cost you thousand bucks for new camera / lens. Does this sound like a good deal?
Especially when it comes to outdoor usage your tripod must be sturdy and stable to carry your equipment and to withstand wind and weather. 'Cheap' and 'compact / versatile' don't come in one package. You need to find a compromise between the features that you need (maximum load, weight, functions) and the price you can afford.
There are ways to improve the stability of a simple tripod (hanging a bag within the legs of the tripod) but it adds weight. Many cheap tripods can't carry much weight.