[Qwertious]

>> bandwidth

>Why would I download a text editor every time I wanted to use it?

To give a serious answer: The web is literally that. And I suspect the success of the web is in a major way due to Windows' lack of streamlined package manager, as the installation ("loading") of a webpage is about a second, whereas the install time of an average Windows program involved potentially several minutes and clicking "next" several times.

Fast install times helps with discoverability - if you can click a link and "install" a browser in under a second, it becomes pretty trivial to try out ten browsers in under two minutes and encourages experimenting. Plus, you'll have reasonable expectation that you won't have to spend time cleaning up the cruft left by unwanted IDEs you don't plan to use.

Also, the install time issue also applies to updates. Web pages mostly don't have an "updating..." loading popup like e.g. Steam has every time there's an update.

Note: I am NOT advocating we all switch to web browsers. I AM advocating that we try to make our package managers a couple of orders of magnitude faster.