I stumbled across this great article on Rock and Ice.
In a nutshell, this all about the roots and the history of Drytooling and ultimately centers on the legitimacy of Mixed Climbing as a pursuit.
At length, there is discussion about the efforts of Jeff Lowe, Will Gadd, Scott Semple, Kevin Mahoney, and others. These guys are pioneers. Living legends of the craft, blazing a trail for others climbers and products like DRY ICE. If they had not been motivated to crush, we'd have nothing to talk about here.
Below lies the core of the article as it relates to DRY ICE:
It had taken Scott Semple took several seasons to become comfortable in that terrain. If DRY ICE had been around then, would it have taken less time?