I don't want to play Steam. I don't want to seek authorization or verification whenever I use a product. Seriously, what does one do if you have no internet connection?
Well Valve is tryin' to make monies. To do that, they want to cut down on piracy. Simple. What's wrong with verification? If you have a legit copy, it's painless. If you don't, go buy one.
Without internet, you won't be able to play internet games so you won't need steam (the TCP server browser front end).