Hess collectible toys can be purchased online from sites such as eBay and Amazon. Offline, an official online Hess store offers in-production products, while second-hand sources tend to offer older products.
Hess collectible toys span many decades, so collecting them all requires exploring multiple avenues. Second-hand markets offer the greatest variety. Websites such as eBay and Amazon attract many customers and sellers, so items on sale update on a regular basis.
Hess collectibles have developed quite a fanbase, so it is possible to find websites and webgroups specifically dedicated to the hobby. Because users are more vested in the hobby, they can provide more detailed information about the availability of certain toys and may have greater access to items. They are also more aware of the rarity or worth of certain toys, so prices may be higher.
Although online sites are the most convenient source for Hess collectibles, it is possible to find them in the wild at flea markets, second-hand stores, charity shops and yard sales. Pursuing collectibles via these channels is much more unreliable, but this can add to the thrill of the hunt, and possibly offer a better deal.
Hess' official toy website has an extensive catalog of its toys; while they are not for sale here, it is a good resource to help collectors learn about their long line of collectibles and refine a search.