CREATE TABLE table_20778 ("Model number" TEXT, "sSpec number" TEXT, "Frequency" TEXT, "L2 cache" TEXT, "FSB" TEXT, "Mult." TEXT, "Voltage" TEXT, "TDP" TEXT, "Socket" TEXT, "Release date" TEXT, "Part number ( s ) " TEXT, "Release price  (  USD  ) " TEXT)

How many release prices are there for the Pentium iii 550?
SELECT COUNT("Release price ( USD )") FROM table_20778 WHERE "Model number" = 'Pentium III 550'
SELECT COUNT("Release price ( USD )") FROM "table_20778" WHERE "Model number" = 'Pentium III 550'