I previously wrote an article about why it may be a good idea to keep your PS3 after upgrading to the PS4. For some, it convinced them to solely stick to their PS3s and pass on purchasing a next-generation console. However, there are some awesome benefits to getting the PS4 too.
In my opinion, the PlayStation 4 isn't perfect but it's definitely improved a lot and learned from the mistakes of its predecessors. The difference in graphical quality isn't that obvious yet, but you'll get your money's worth in the hardware and software capabilities.
So, read on if you're interested in hearing the reasons why paying $400 for the PS4 is a good investment.