Rollover requirement is good for gamblers who can put a lot of time and effort for the goal to win a prize, however, most of the gamblers are aware that rollover requirement is just so hard to achieve, and most likely we will just end in the end since this is gambling, it's hard to win when the odds are against us, but if its just for fun, then its still good for me, but personally I am not anymore looking for that kind of promotion.
Actually rollover requirements are not so hard on the sportsbook are compared to casinos and dice websites.
I mean if you google around you will find that the biggest bonuses are offered by casinos because they are quite sure of their system that it's nearly impossible to roll-over but sportsbook offers small bonuses like fortunejack offers double bet amount as free bet and there are no rollover required to withdraw as well, similar welcome bonus is there at sportbet and maybe others are there. recently stake.com started offering sports betting too but I haven't tried them, they might have some good offers on them.