I used to play on nitro like 4 years ago, each Wednesday they used to do a freeroll for 0.2BTC, the price of bitcoin was like $600 so it wasn't bad at all.
That's a lot today but anyway, past is past and we always tend to think of the feeling of regret that those freerolls worth 0.2 btc.
I don't know if they keep doing this kind of tournament, but for sure they should have some nice promos.
I've just checked their announcement thread and they're still into promos and contests. But unlike before, their thread is no longer when they're still haven't received a negative review.