Most synth VSTs come bundled with a large selection of presets in a variety of styles. It’s very rare to find one that doesn’t have at least a hundred or so. Developers often hire specialists to create the presets for their instruments and will sometimes even advertise their names as a selling point. While additional official and third-party preset packs are often available, whether you decide to buy them is up to you. Presets can be a great way to reverse-engineer an instrument’s synthesis capabilities. They can also function as an inspiration for new compositional ideas. If your chosen genre isn’t represented in the pre-packed presets, go ahead and splurge for extra presets. They’re not absolutely necessary though.