Once you have learned the skill of handcrafting, you will be able to produce rings, glasses, staves, bows, earrings and necklaces. If you are Rangers and Chanters, this profession is a good skill that you are recommended to make the choice. However, if you are not but interested in making kinah, you also can take it into consideration.
Handcrafting is well known as the best profession to make kinah in game. its productions are rare, so you can make a high profit from making them. If you take HC you will not be spending huge amount of kinah, but gathering the materials that are required to produce those items costs you enormous amount of time. Making items that are made from wood is not difficult, but at the same time those items can not make you become a millionaire. Jewelry is not in the case, crafting jewelry is a good way to make large sums of money, however making them requires gems which are rare and come in small numbers.
If you think you are a person with fortitude and patience for gathering materials, ranging form common to rare, and with a purpose of making loads of kinah even at high cost, handcrafting is what you are looking for.
In short, handicrafitng is absolutely a good way to make you rich. There are two reasons why any item in Aion would carry a premium price. One is the rarity of the item, and the other is the number of classes that can use the item.