By reading partyhummels post I think the poll should have another option "only NDB" - because that's what many do, just no risk and a slim chance to convert
I think Simmo! some intention with this poll is to evaluate if players tend to use SUBs more often compared to years ago. For me much has changed since the old days. I still usually take them.
However much has changed how to approach the playthrough.
When I started playing online 2005 most bonuses had no catch: You could see the wagering requirements and that's it. No max-bet, no excluded games (let alone excluded slots), no max-cashout shenanigans.
Back then I played many different games. Slots, Live-Casino-Games, but also table-games. Basically everything you can find.
In 2015 things have change dramatically. Casinos are cought in the bonus-race and therefore decrease the bonus-quality up to a point where it's almost impossible to make the playthrough. And I play much more slots today.
The biggest difference comparing 2005 with 2015 is I usually don't make the playthrough. I don't fancy playing hours to make the playthrough so I only play at casinos where I can play the bet-size I find fitting to fulfill the wagering requirements in modest time. However I mostly fail to do so and bust. This is why I sometimes make a straight deposit to just a play for half an hour.
What I actually like is that many casinos offer things like (wager-free) free spins or cashbacks as incentives. This approach you see far more often nowadays which I consider a good thing.
I think that's the future. And many innovative casinos do that already. For example Videoslots with it's race/cashback, Thrills with the free-spins treasure journey (you trigger chests with wager-free freespins along the way), betat with bonuses you get with a certain playing activity (or the supercharged winnings at their sister Slottyvegas).