The Short Version: Initially, I wasn’t interested in the 3DS but after playing a demo of Super Mario 3D Land at a Best Buy I realized it would be a good system to have. I purchased one and really like the features and most of the games I now own.
I’ve had at least one of the top three, current generation consoles since the Wii and Xbox 360 were released (PS3 ownership came later). For a while now I’ve owned all three. They each get used infrequently – typically the Xbox 360 is used the most though every once in a while I use the Wii or PS3 when a new game I’ve been waiting for is released (for example, Shadow of the Colossus for PS3 and New Super Mario Bros for Wii).
As a life-long gamer I fall somewhere between being a casual gamer and a hardcore gamer.
I’ve certainly been aware of portable game systems – in the past I briefly owned an original GameBoy (I also played a Sega Game Gear for a while though think I only borrowed it). I also borrowed a PSP from one of my brothers and toyed with it for a while over several months.