[onwardly]

Another reason is that playing DraftKings or FanDuel does actually make watching football more interesting- you care about games you otherwise wouldn't care about. Many people will happily continue to lose $10/week for the benefit of enjoying watching the NFL more.

Online poker isn't as fun when you're consistently losing money- there's no "outside" benefit.

[aianus]

Putting $100 on a specific football match at 1.5% rake is both more fun and more profitable than DraftKings/FanDuel.

[gregorymichael]

Difference is: entering a DFS lineup makes you care about most of the games.

[kasey_junk]

By that rationale online sports books should be legal in the US (hint: they should)