I think both passion and business is involved not just in EPL but football as a whole, most players in EPL are after their pay while some other are after their passion for football,, from their play you will even notice, most of them feel so reluctant even when their team are loosing the match which is absolutely wrong,, I think passion should come first , as for the supporters it's obviously passion no doubt about that because most of them go as far as paying to watch their team play, also buy jerseys etc