A SaaS can fail... if you're the solo dev on it -- nothing you build is ever a failure. Most other business ventures - like someone mentioned 'info products' --

A SaaS can fail... if you're the solo dev on it -- nothing you build is ever a failure. Most other business ventures - like someone mentioned 'info products' -- none of those has inherent value unless it's a success and you make money. The value in ALL side projects is that as long as it's 'live', it's something you can use on your portfolio, and worst case scenario -- open source that baby -- and now you're an OSS maintainer.