The Nexus 10 is being critically evaluated by many popular online articles. I fear this is due to what I call the "Apple Syndrome". There are devices (mainly Android-based) that can actually compete with the iPhone/iPad and they're, typically, under attack by the mainstream in some fashion or another. Trolls will attack it due to the design/build, even though they don't realise that Apple uses Samsung hardware (Retina Display, SSD Drives (Macbook), and more) in their devices. Of course there's going to be more tablets released by Google in the future, we can only hope that they do. I don't understand the buyer's remorse mentality when it comes to technology. It's common sense that technology will continue to progress at a steady rate - even if it's something minor (more cores/better GPU in this case). Powerusers/tech geeks should know when new technology is going to be announced (expos, for example, happen around the same time each year) and can give a roundabout estimate of their first field appearance if there's manufacturers working on embedding the tech into their devices. To feel upset about being "behind in technology" would be an error made by the end-user.
I feel like the odd-man out. I actually do research before purchasing a device. For example: with the Nexus 10, I knew about it before its release. I waited a month for reviews on YouTube (watched at least 60-70 of them, even the trolling ones by Apple fanboys for harsh/biased criticism) and lurked forums for posts/complaints/etc from early adopters. Even then, I had to be coerced into purchasing it because I don't really like spending so much on a device that could be a "gimmick" (my first impressions with using an iPad, that's how I felt about tablets). Once I got my Nexus 10, I was surprised at how functional it is and how beautiful the display is. I'll be content with it for quite some time, actually.