At first glance, you would think that Betdaq has even more sports on offer, but in reality, Betfair have 27 different sports on offer, and Betdaq only have 20. The number of sports available is one thing, but the number of markets in those sports is also crucial.
Trading the Betfair markets is most definitely a genuine earning opportunity and for those who are determined and committed enough, it certainly can and does replace a full time job. And then some.