Both myself and my co-founder left well paying (not as well as yours though! :)) jobs to create our startup. It was definitely worth it and we plan on doing this as long as possible.

I love programming and always have. I realised I needed to leave my job after I started considering changing careers. The place was completely soul crushing. I've been doing it for almost 6 months now and the funny thing is I could go back to my old job any time if I wanted to. I have no intention of doing that though.