There are a few things going on here.
1) It's very typical when you first list a home to get a ton of activity. You're newly listed and the people looking in that area are going to want to view the home. As the listing goes on, you will get buyers that just started looking, which leads me to my next point.
2) It's November (you asked in October). The housing market typically does start slowing down now, and it was early this year. There are fewer new buyers and many current buyers are taking a break for the year.
3) Part of it could be the interior finish/condition. It's easier to get away with some cosmetic defects in 60586, but N Plainfield 60585 buyers tend to be pickier because the values are higher, different clientele.
A price reduction does 2 things: 1) will be automatically sent to active prospects on ConnectMLS (provided it fits search criteria), and other IDX websites where price update email features are enabled. So it reminds buyers you're still there and it gives you ac second shot at people that might have missed it before. 2) brings your list price closer to reality if you're overpriced.