paulo
You'll have to forgive me also if I don't fancy re-wiring my house just to accommodate a software vendors new plan. 
You don't have to rewire anything, with an IP over powerline solution you just have to plug in a couple of boxes. This gives you hardwired connectivity without the need to install ANY drivers or software on your system that isn't already there.
Years ago I helped a friend build a new Protools machine for his studio. He had the same issue. Router was upstairs and studio was downstairs so he installed a wifi adapter. It was amazing how much trouble that caused and we both said never again.
Like it or not, here's the bottom line. Its not just one software vendors new plan. Its the way almost every vendor is going to be doing things moving forward.
Plus having a gigabit pipe on the machine opens up the door to things like network drives for bulk storage and automated online/off-site backup solutions.
My studio machine is studio only. That's all it does so it has no other software on it. And while I do not use it to surf the web at random or anything like that, I could not dream of not having it connected. Installing patches and updates, doing backups, uploading finished projects for access outside the studio, and being able to search this forum for quick answers when I need to know how to do something I've never done before are all so handy, I'd feel impaired if I didn't have them available. That's me though, and as always, your mileage may vary. Cheers.