How profitable is it to mine this coin right now with an Nvidia GTX 1070? compared to ETH or Zcash for example.

I'm mining with 3 Gtx1080Ti. Get around 20 coins a day, so around $25.

With only 3 GPUs this is very profitable to mine in my opinion. So with 2 rigs of 6 you'll get 100$ a day which is very very good, this if you didn't miscalculate something.

I remember that HR is around 7-8Gh/s, got ~20 shares per hour and each share worth ~0.04 BIS, 0.04*20*24 = 19.2BIS as I remember (this is few weeks ago, I haven't checked current status yet). I'm mining on the official pool, eggpool. Maybe the difficulty has increased and these numbers are not correct for now.

Which miner/pool?

Fair price for Bismuth  

Not fair enough once the project is mature and ready. There still a larger room to grow. but I believe if Bitcoin stabilizing or doesn't make any sudden move like the recent spike, Bismuth will hit the new all-time high.

after all, we can't deny the spike is tremendous imagine if we make it for a long-term investment. In the end, we just pick which color the Lambo we want.

Is the price above real. In which exchange Bismuth hit 6 dollars. I don't see this graph on criptopia. Maybe some other exchange with very few volume.