The internet can require an upgrade too
Unless you just have to browse your intranet, the web requires as well more horse-power, especially when you use a lot of video, but even the clients scripts, java, flash and co tend to be more and more consuming.
Put it simply: the need to upgrade your PC don't come from the softwares, but from the contents. Hence, you can't save money on a very long term unless you stick to text based contents and tiny pictures.


