I'm a self-confessed gadget nerd but I have been resisting the table craze so far as I can't see when I'd use one and I haven't seen a good enough device.
I have my smartphone for when I'm out and about, I have my desktop for "proper" computing and my laptop for "sofa surfing".
Maybe if I spent more time travelling then I might be more tempted, but my Kindle fills most of that gap. When I'm on holiday I'm more interested in reading than watching movies.
I was also quite badly bitten by the netbook craze a few years ago. I bought one to go on holiday with and while it has it's uses, I haven't turned it on in months.