Dead Rising 1 would be amazing but most people will complain it's too hard and mod it to tone down the difficulty without trying to understand the systems. It's no wonder they toned it down in 2 and 3 is a kind of press a button and something amazing happen.
100k would be a great start for DD. Being at the top of the best sellers list doesn't mean much for numbers. Zestiria was there for many days and started at 60-70k :S
I had a great time with DR1, was a shame DR2 and 3 toned it down so much. Even though I enjoyed them, they lacked what made 1 so much fun.
Dead Rising 1 was so awesome, the multiple endings that encouraged non-linear experimentation really resonated with me.
I can see why people who have gotten used to the standard AAA game design might not like that aspect, but I found it very interesting.