Most Pokemon games sell tons of copies in stores, but these titles are unusual for selling just one copy each years after ...

It's always "what games sold the most this year" and never "what games sold exactly one copy" — or, at least, it was until ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas ...