I'll always prefer a laptop over a tablet, simply because tabletr has far less usability. Yes, if you just want to watch a few movies and browse the internet a tablet may be fine, but having 200 machines in your household is kind of a turn off. For example you could easily use a HTPC, NAS, desktop PC, laptop, tablet, smartphone, gaming console etc. at home, but what the ****? Imagine keeping all of those up-to-date.
Still that is what people like steve jobs and microsoft wants us to do so they can make more profit, but I prefer keeping things simple. However, because my desk is always vacant, I think I'll always have a keyboard right on it. Sorry, but having a tablet or touch PC at home at your desk is just like being one-legged or something.