The thing about averages is it hides the good and the bad into one lump number. If your systems were forced to rapidly scale up, maintain various features, and need to refactored/rearchitecured, your probably seeing more than 5 alerts a month. Which makes something like neptune.io usefull since customizing the response based on alerts is your only choice in the short term. Not many if at all any services out there offer solutions to poorly functioning systems. And just to add, at the pace some startups grow, you'll never have a perfect set of systems in place, so you just deal with things as they come. Great systems are a luxury for startups.