I pre ordered mine on June 6th.
I work in the food business and I just collected my tips and was easily able to pay off my PS4, 4 games, and an extra DS4 controller by late July.
Pre-ordered the Watch Dogs bundle on amazon. Haven't been charged yet.
You get charged when they ship it.
I have 53.14 left to pay off my system at gamestop. I havent decided which games to get yet so I didnt preorder any of those. As for an extra controller i will pick one up early 2014.