Earlier quoted context omitted.
Thanks for asking, it is cheaper than preemptible instance of K80 0.135$/h on Google with an equivalent GPU of P106 0.095$/h on Snark.
That's definitely not 3-5 times cheaper.
From https://cloud.google.com/compute/pricing it looks like the non-pre-emptible K80 pricing is $0.45 USD per GPU.
Can someone from Snark correct me if I'm wrong?