I think the bottom line here is that having a tournament every two weeks is simply impractical. It takes a lot of work and organization to make these happen. Not only would tournaments this common be a mess, but it would also make them less special. Less excitement. The rarer tournaments are, the more people will be excited for them and try their best.
...and if it's not going to be intense, if everyone has the 'next time' attitude; we might as well just be battling.