I've got a laptop computer. I also have a Kindle. No way is the laptop even close to an adequate substitute. I plan to bring both on a cruise I'm going on starting next week. My Kindle is not the DX, and I'm not at all sure whether I'd prefer the DX or not, but your comments have nothing in particular to do with the DX either. I'm not going to just repeat all the sales blub stuff in detail. That is all readily available. I don't know whether you never read it, or perhaps the Kindle just isn't for you. I'm sure it isn't for everyone, but that doesn't mean it is for nobody. In very short...
The Kindle (non-DX) is sized and shaped about like a paperback (particularly if you get the leather cover - recommended). This is clearly intentional, and it works well. You can tote it around just like a paperback; my wife throws it in her purse just like one. It is a whole lot more handy than my laptop. It is also a *LOT* easier on the eyes than a laptop screen. And yes, I can indeed read it outside in the desert sun here in lighting conditions where it would be hard to even tell whether my laptop was on. Since the epaper screen is a large chunk of the cost of the thing, its properties are important to consider. Yes, if you don't value those properties, you aren't going to value the Kindle.
Its battery life is measured in days instead of hours (caveat: that's with the wireless off, which makes a huge difference; keep the wireless off if you aren't using it). And my aging eyes appreciate that I can select the font size instead of being stuck with whatever tiny font a book printer used.
Most of the books I have on it so far are free ones, though my wife has bought a few, and we'll probably skim Amazon and buy a few more today.
One negative. I don't think the interface for things like newspapers is very convenient. I tried the free trial subscriptions to a few papers, but then I dropped them. The material is there, but it just isn't presented in a way that I find very handy. With either a physical paper or the web, you immediately see what the "big" stories are. Sometimes that's all you want. You don't get that with the Kindle.
Yes, I could carry a dozen books or so on my upcoming cruise. Well, I could carry them until all the extra weight got to me, which it would. Or I could carry my one KIndle. I'm bringing the Kindle.