Of the 50+ games I've completed on the 360, Dead Rising is one of the few that I could never bring myself to sell. I still find the urge to play it from time to time. This game was more of a challenge than any of the sequels. The newer Dead Rising games were just too easy.
Originally Posted by vSully
How many playthroughs are required for 1k? And how long will it take?
As the guide
on this site says, "Estimated time for 1000: 30+ hours. Minimum playthroughs: 3-4 (4-5 recommended)". That's pretty accurate. I probably spent 40 or 50 hours but I was taking my time and enjoying everything. 7 Day Survivor alone takes 14 hours, and that's assuming you never take any breaks.