[lawnchair_larry]

It's probably not that they don't have $70, but that they don't have time and it's easier not to bother. Buying software at big companies can be a pain.

[microtonal]

Ok, let's rephrase: anybody with a Google salary can afford Sublime Text.

Also, when Sublime Text has a reasonable amount of popularity within Google, they could just purchase a site license for N users.