The aim of this study was to identify the aspects relating to customer loyalty to the supplier and to the channel, specifically the possible differences between those who buy and those who do not buy on the Internet. As well as a review of the literature, a qualitative survey with 30 buyers of books, CDs and DVDs was carried out. The results indicate that the main attraction of purchasing on the internet is practicality and convenience while discouraging factors included reliability and financial aspects. As regards loyalty to the supplier, with offline shopping shop assistant help, store location / ease of access and satisfaction with previous experience of purchase and price competitiveness were mentioned. Online, the most important aspects were satisfaction with previous experience of purchase, the availability of information about products and price competitiveness.