How Do Major Hashrate Rental Platforms like NiceHash Contribute to the Attack Cost Calculation?

Platforms like NiceHash operate a marketplace where miners sell their hashrate to buyers, and the price is determined by supply and demand. The attacker's cost is derived directly from the current price per unit of hashrate (e.g. per TH/s) on these platforms.

They make it easy to aggregate vast amounts of hashrate quickly, making the cost calculation transparent and the execution efficient, thereby facilitating the attack.