Card companies are trying to maintain a sizable hobby base in a variety of ways. Especially prominent is a focus on transitioning the cards to an online market. Both Topps and Upper Deck have issued cards that require online registration, while Topps has targeted the investment-minded collector with its eTopps offering of cards that are maintained and traded at its website. Also, since the late 1990s, hobby retail shops and trade-show dealers found their customer base declining, with their buyers now having access to more items and better prices on the Internet. As more collectors and dealers purchased computers and began trusting the Internet as a "safe" venue to buy and sell, the transformation from the traditional retail shops and shows to Internet transactions changed the nature of the hobby.