Though there is a large variety and styles of fonts to choose from, all the fonts of a typeface may not be available, to get these complete typeface collection, you usually have to buy the font or rather buy the license to the font on the respective publishers’ website.
If you do not want to go through the process of buying it online, there are software cds also available that can be bought and installed into your computer. Popular font developers include adobe Photoshop, Corel draw, Microsoft office collection, and many more but these remain the best. To buy fonts, you can simply surf the website and enter you software registration code and your credit card number and follow the instructions as given.
These are not the only ways in which you can buy a font, other websites also create fonts to your specifications and make them available for your downloading and there online tools to convert regular fonts to cursed text copy for example.
The main thing one has to keep in mind while buying fonts is the reputation of the site that you are buying from. Otherwise buying fonts is a good way of stopping any copyright infringement details from worrying you.