Thanks for sharing.
I tried to create an instance with the recommended specs, but the pricing is nowhere near $0.53/h, more like $1.36
Are you sure this is a n1-highmem-8 (8vCPUs + 52GB) with 1 GPU NVIDIA Tesla P100 ? What region/zone did you use to get this pricing ?
Also, using automatic CPU platform selection usually results in having older CPU models selected, but selecting skylake increases costs. Does it matter ?
EDIT: Reading the tutorial further, I can see an shell command to create the instance using a “n1-standard-8”. Concluding the pricing paragraph has a typo. But this doesn’t decrease the price much lower, now around $1.29/h