A broader number of audience, that's correct.
Stake.com on the other hand does offer some promotions for NBA. A lot of times they have it ready when there are big games when the two most popular teams will clash or it's the playoffs, just like now.
https://stake.com/promotions/promotion/nba-double-winningsNBA - Double Winnings
The return of the NBA is bigger and better on Stake!
This season, you can enjoy Double Winnings on selected matches every week.
If your Winner (Incl. Overtime) selection wins, and their respective player hits their target, earn Double Winnings up to $100!
Sportsbet.io has a booster to increase your multiplier and I think that's awesome that they let it stick there.
But you are right about other sports bookies that support a local currency, most of them do not offer anything like what others do. I guess you will just have to find your own favorite bookie so that you can maximize their promotions.
I do feel they need to change this. Still, I am thankful that most of the sports gambling sites have the same game parlay opened especially now that there's only one game remaining each day or in a couple of days.
When it goes to the Finals we are going to be bored as hell waiting for the next game to happen.