I've had a few friends that've reached that point where they can quit their regular day jobs and just get to do the music thing and it's definitely a huge step. Plus it sounds like you can do this without spending too much time away from home which sounds fantastic. Since you currently work in IT, have you considered doing it on occasion as a consulting gig? You'd lose the benefits and it doesn't really sound like you need the cash, but it'd help keep you current if you ever need to leap back fully into it and it could probably keep you going in any slow times with the corporate/country club gigs.

But congrats man on the success, I hope I could hit that level one day.