Commercial fonts can be obtained from a number of different companies, including the large font houses: Adobe, Font Haus, Font Company, Bitstream, and Monotype. At these companies, fonts cost about $40 for a single face, and must be purchased in packages. Adobe, Bitstream, and Monotype also sell pre-designated type collections for slightly lower prices.
Image Club sells a wide selection of fonts for about $50 for a 4 font family.
Other, cheaper companies sell fonts of lesser quality, including KeyFonts, which sells a set of 100 fonts for $50 and Casady & Green's Fluent Laser Fonts, a set of 79 fonts for $99. Casady & Greene also sells Cyrillic language fonts in Times, Bodoni, and Helvetica sell for about $40 for each 4 font family.
Foreign language fonts, ranging from Egyptian hieroglyphics to Cyrillic can be obtained from Ecological Linguistics.
Please consult the vendor list for a more complete list of vendors.