Maybe the alternate store has a better presentation of apps (I find App Brainz on Android easier to browse than the default marketplace app). Maybe I want to see an app store that's filtered out all the porn, maybe I want to see one that only has porn in it.
The I think rather than open vs. free, Android and iPhone could better be compared by choice vs. simplicity. Android gives you choice on just about every bit of the phone (new marketplace, new home screen, new soft keyboard -- all without rooting) whereas on the iPhone it's Steve's way or the high way.
Now Steve's way is pretty damn good and it benefits a ton from the simplicity of not having choices, but it's not really possible to make a "best" choice for everyone, and Android can really hit a wider range of tastes. Whether any of the manufacturers/networks are doing that well now is very debatable.
The I think rather than open vs. free, Android and iPhone could better be compared by choice vs. simplicity. Android gives you choice on just about every bit of the phone (new marketplace, new home screen, new soft keyboard -- all without rooting) whereas on the iPhone it's Steve's way or the high way.
Now Steve's way is pretty damn good and it benefits a ton from the simplicity of not having choices, but it's not really possible to make a "best" choice for everyone, and Android can really hit a wider range of tastes. Whether any of the manufacturers/networks are doing that well now is very debatable.