In my experience a gram of K in the US costs around $100
In the UK it is more like $20-$40
In the UK it is more like $20-$40
However, ketamine is widely used as an anesthetic, so I think the "cheap to make" refers to Ketamine redirected from the pharma market to illicit channels, in which case "making" ketamine is just drying the solution to crystalize the sole ingredient.