“…However, studies focusing on this topic are scarce; to the authors' knowledge, none uses causal models to analyse spa purchase intention. Only two papers analyse spa choice: Virabhakul and Huang [15], who used a joint analysis of cards with spa characteristics (comparison of two spas with two possible combinations of characteristics), and Ahani, Nilashi, Ibrahim, Sanzogni and Weaven [16], who used a machine-learning approach to analyse TripAdvisor comments and ratings. In this context, the present study uses the Unified Theory of Acceptance and Use of Technology (UTAUT) [17] and, more specifically, an adaptation of the UTAUT2 [18] to explain potential tourists' purchase intentions regarding a thermal suite.…”