I have had the same camera for almost 10 years. It's the Nikon D200, a beast of a camera. The original price ($1300) of it when first released was way too high for my price range, but having a bit of luck I got it cheaper. It's outdated now though, and way too big to carry around all the time. The time is right for me to get a new camera.
Many journalists and know-it-alls have said that bigger cameras (DSLRs) will become redundant. This has been the norm since phones started to come with cameras in the early 2000. Grant it, most of the smartphones today take superb pictures compared to their predecessors, but they still don't generate close to the same quality my now eleven year old camera outputs (released 2005). It has served me very well for so many years, and to this day it still outperforms the best cell phone cameras by a landslide.
The fact is that we haven't yet - and probably won't - find a solution to the physical problems that comes with minimizing the components in cameras. We still need light to hit a surface, and the smaller this surface is the worse it gets. The same technology goes into these two camera sizes, and thus the bigger camera will always be superior with better sensors, better lenses, better processors and so on.
So why do I need a new camera? Well, there are several reasons to this.
Firstly, I don't have a proper video camera. Yes, I got my GoPro, but that only does it for action sports filming. I need something that will not only shoot in HD but also have decent lens options, image stabilization, slow motion, better microphone possibilities and be smaller.
Secondly, the dynamic range of my Nikon camera is abysmal. Sure I can fix most of it in post when taking underexposed images, but that type of editing is very destructive and ruins a lot of the colors in the image. I need a modern camera that can give me a modern dynamic range.
Thirdly, I feel I have waited long enough! Ten years using the same camera is a long time. Technology has developed rapidly and I'm proud of how long I have been able to take great pictures with the Nikon. But now it's time to step it up. Maybe I'll get a camera that can last just as long again.