Point taken. The intention was not to claim that all free apps are crap. There are definitely plenty of good ones like you mention.Hardly.
I use a number of good, free apps. Wordfued, Amex, Chase, TDBank, Mint, Linkedin, SimpleCasts, Steam, AlienBlue, PadMapper, Twitch, Shazam, MyFitnessPal, Yelp.
All of these are free and/or ad supported and of decent or above-par quality.