Because there are so many packages, and because anybody can contribute.
You often have a wide variety of packages to choose from when you want to
analyze a specific type of data, there are probably hundreds of packages
dealing with gene expression micro rate data.
Sometimes these different packages within Bioconductor
are direct competition for users.
They are doing perhaps more or less then the same thing or
using two different analysis approaches to try to answer the same questions.
That makes it sometimes a little bit complicated to figure out
which package should I use and how should I use it.
But in the end, all off this competition is great for
the end user because it means we get a better product in the end.
