At first, I found it hard to get into PC gaming. I was used to a controller and mouse and keyboard controls didn't feel as intuitive as my friends who are into PC gaming told me they would. I couldn't get into the games I had. I kept playing them anyway though and now I'm playing games I wouldn't have had the chance to otherwise. Starcraft 2, Amnesia, The Witcher... I'm certainly seeing why PC is a great platform.
A big draw for me is Steam. I do like to have boxes on display on my shelf, but I'm becoming accustomed to digital downloads. Having all your games in one place where updates are downloaded in the background is great, and some of the Steam sales are ridiculous.
I look forward to beating some games I always wanted to play and maybe (maybe) getting good at Starcraft.