The best oil paints might cost a little more, but you'll almost certainly get a return on your investment. After all, it's no secret the quality of an artist's tools can significantly impact their work. And so for oil painters, selecting the right product is crucial to realising your creative vision.
Thirdly, evaluate the paint's consistency. Some artists prefer a stiffer paint for impasto techniques, while others like a more fluid consistency for glazing. Many brands offer a range of consistencies. Fourthly consider your color palette. Start with essential colors and gradually expand. Some brands offer starter sets that can be a good introduction.