Good news I love Sublime it's so fast and slick - I haven't used Atom because consensus seems to be that it's not as fast with multiple large files open.
Why is everyone obsessed about open source, yes nice to have but at the end of the day this is just a (very sharp) tool - what's your priority tinkering with your tools or getting the job done? 70$ is peanuts, speed and productivity gains way outweigh this.
ST is multi-talented, brilliant for SQL, runs huge Postgres queries directly and lightning fast with full feed back ( error messages line numbers etc) even multi million row result sets don't phase it , any other editor would just gind to a spluttering halt.