Is making iPhone apps and selling it for 99 cents worth the time and thoughts?

Is making iPhone apps and selling it for 99 cents worth the time and thoughts?

Even your put it on App Store for free still worth the time your develop it. The reason is you'll get much more money back through Ads inside your app. However, 99 cents will worth if 1 million people buy it, LOL.

Flappy Bird is a free game and the developer (Dong Nguyen) makes $50,000 a day. It's been up on App Store for a while so he could already makes couple million dollar now. Develop an app is not as hard as advertising it. Some dude develop an awesome game, but he doesn't know how to make it appear on top of App Store so he'll never makes good money.

So you think thats just a general question that covers everything. Lol