Honestly, as someone who does both PC and console gaming I'd say convenience (call me lazy) is a 100% valid reason to pick a console... that being said, a lot of multi-platform titles are only playable on a good gaming PC, I'd say this for all multi-platform released during the ps360 area that were on PC, the gap was just too big, even early on when you could have a 3D card that had 512MB of really fast memory (for the time) which is what either console had in total!
and well PCs are just more flexible (emulation, HTPC functions, full forward and backward compatibility)... but even if this is easier than before, both to set them up and obtain software, they are still way more complex than a lot of people are willing to bare with just to play some game with improved graphics, while they are either tied to their desk or forced to have a keyboard lying around their living room...
The only acceptable console right now is the PS4.